diff --git a/package-lock.json b/package-lock.json
index 8b060ab24..6d94dacf9 100644
--- a/package-lock.json
+++ b/package-lock.json
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         }
       }
@@ -6883,11 +7059,18 @@
       "integrity": "sha512-6uHUhOPEBgQ24HM+r6b/QwWfZq+yiFcipKFrOFiBEnWdy5sdzYoi+pJeQaPI5qOLRFqWmAXUPQNsielzdLoecA=="
     },
     "grouped-queue": {
-      "version": "0.3.3",
-      "resolved": "https://registry.npmjs.org/grouped-queue/-/grouped-queue-0.3.3.tgz",
-      "integrity": "sha1-wWfSpTGcWg4JZO9qJbfC34mWyFw=",
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/grouped-queue/-/grouped-queue-1.0.0.tgz",
+      "integrity": "sha512-XslfWrAGCYovQjveHODR0hllUrsn3UtvPFTkamHbgVHmkUA6eCIDmw3JDWVLJvuntTvYjwaPGamlyzK4/HAEOA==",
       "requires": {
-        "lodash": "^4.17.2"
+        "lodash": "^4.17.15"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.15",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+          "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A=="
+        }
       }
     },
     "growl": {
@@ -6902,30 +7085,47 @@
       "dev": true
     },
     "handlebars": {
-      "version": "4.1.2",
-      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.1.2.tgz",
-      "integrity": "sha512-nvfrjqvt9xQ8Z/w0ijewdD/vvWDTOweBUm96NTr66Wfvo1mJenBLwcYmPs3TIBP5ruzYGD7Hx/DaM9RmhroGPw==",
+      "version": "4.7.6",
+      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.7.6.tgz",
+      "integrity": "sha512-1f2BACcBfiwAfStCKZNrUCgqNZkGsAT7UM3kkYtXuLo0KnaVfjKOyf7PRzB6++aK9STyT1Pd2ZCPe3EGOXleXA==",
       "requires": {
+        "minimist": "^1.2.5",
         "neo-async": "^2.6.0",
-        "optimist": "^0.6.1",
         "source-map": "^0.6.1",
-        "uglify-js": "^3.1.4"
+        "uglify-js": "^3.1.4",
+        "wordwrap": "^1.0.0"
       },
       "dependencies": {
+        "commander": {
+          "version": "2.20.3",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
+          "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
+          "optional": true
+        },
+        "minimist": {
+          "version": "1.2.5",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
+          "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw=="
+        },
         "source-map": {
           "version": "0.6.1",
           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
           "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g=="
         },
         "uglify-js": {
-          "version": "3.5.6",
-          "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.5.6.tgz",
-          "integrity": "sha512-YDKRX8F0Y+Jr7LhoVk0n4G7ltR3Y7qFAj+DtVBthlOgCcIj1hyMigCfousVfn9HKmvJ+qiFlLDwaHx44/e5ZKw==",
+          "version": "3.8.1",
+          "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.8.1.tgz",
+          "integrity": "sha512-W7KxyzeaQmZvUFbGj4+YFshhVrMBGSg2IbcYAjGWGvx8DHvJMclbTDMpffdxFUGPBHjIytk7KJUR/KUXstUGDw==",
           "optional": true,
           "requires": {
-            "commander": "~2.20.0",
+            "commander": "~2.20.3",
             "source-map": "~0.6.1"
           }
+        },
+        "wordwrap": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
+          "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus="
         }
       }
     },
@@ -9402,9 +9602,9 @@
       },
       "dependencies": {
         "rxjs": {
-          "version": "6.5.4",
-          "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.5.4.tgz",
-          "integrity": "sha512-naMQXcgEo3csAEGvw/NydRA0fuS2nDZJiw1YUWFKU7aPPAPGZEsD4Iimit96qwCieH6y614MCLYwdkrWx7z/7Q==",
+          "version": "6.5.5",
+          "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.5.5.tgz",
+          "integrity": "sha512-WfQI+1gohdf0Dai/Bbmk5L5ItH5tYqm3ki2c5GdWhKjalzjg93N3avFjVStyZZz+A2Em+ZxKH5bNghw9UeylGQ==",
           "requires": {
             "tslib": "^1.9.0"
           }
@@ -10222,9 +10422,9 @@
       "integrity": "sha1-ICtIAhoMTL3i34DeFaF0Q8i0OYA="
     },
     "node-abi": {
-      "version": "2.13.0",
-      "resolved": "https://registry.npmjs.org/node-abi/-/node-abi-2.13.0.tgz",
-      "integrity": "sha512-9HrZGFVTR5SOu3PZAnAY2hLO36aW1wmA+FDsVkr85BTST32TLCA1H/AEcatVRAsWLyXS3bqUDYCAjq5/QGuSTA==",
+      "version": "2.15.0",
+      "resolved": "https://registry.npmjs.org/node-abi/-/node-abi-2.15.0.tgz",
+      "integrity": "sha512-FeLpTS0F39U7hHZU1srAK4Vx+5AHNVOTP+hxBNQknR/54laTHSFIJkDWDqiquY1LeLUgTfPN7sLPhMubx0PLAg==",
       "requires": {
         "semver": "^5.4.1"
       }
@@ -10758,22 +10958,6 @@
         "mimic-fn": "^1.0.0"
       }
     },
-    "optimist": {
-      "version": "0.6.1",
-      "resolved": "https://registry.npmjs.org/optimist/-/optimist-0.6.1.tgz",
-      "integrity": "sha1-2j6nRob6IaGaERwybpDrFaAZZoY=",
-      "requires": {
-        "minimist": "~0.0.1",
-        "wordwrap": "~0.0.2"
-      },
-      "dependencies": {
-        "minimist": {
-          "version": "0.0.10",
-          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.10.tgz",
-          "integrity": "sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8="
-        }
-      }
-    },
     "optionator": {
       "version": "0.8.2",
       "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.8.2.tgz",
@@ -14959,9 +15143,9 @@
       }
     },
     "yeoman-environment": {
-      "version": "2.7.0",
-      "resolved": "https://registry.npmjs.org/yeoman-environment/-/yeoman-environment-2.7.0.tgz",
-      "integrity": "sha512-YNzSUWgJVSgnm0qgLON4Gb2nTm+kywBiWjK4MbvosjUP2YJJ30lNhEx7ukyzKRPUlsavd5IsuALtF6QaVrq81A==",
+      "version": "2.8.1",
+      "resolved": "https://registry.npmjs.org/yeoman-environment/-/yeoman-environment-2.8.1.tgz",
+      "integrity": "sha512-MV6yeJfnSsZBv/VuWvw82bN6hF6KIXRUwhEPaO+RHJAWeNCQAF+iYfBNsJOo4tx5Puch300h+DF9QZceKkbzQg==",
       "requires": {
         "chalk": "^2.4.1",
         "cross-spawn": "^6.0.5",
@@ -14969,7 +15153,7 @@
         "diff": "^3.5.0",
         "escape-string-regexp": "^1.0.2",
         "globby": "^8.0.1",
-        "grouped-queue": "^0.3.3",
+        "grouped-queue": "^1.0.0",
         "inquirer": "^6.0.0",
         "is-scoped": "^1.0.0",
         "lodash": "^4.17.10",
@@ -15084,9 +15268,9 @@
           "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
         },
         "rxjs": {
-          "version": "6.5.4",
-          "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.5.4.tgz",
-          "integrity": "sha512-naMQXcgEo3csAEGvw/NydRA0fuS2nDZJiw1YUWFKU7aPPAPGZEsD4Iimit96qwCieH6y614MCLYwdkrWx7z/7Q==",
+          "version": "6.5.5",
+          "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.5.5.tgz",
+          "integrity": "sha512-WfQI+1gohdf0Dai/Bbmk5L5ItH5tYqm3ki2c5GdWhKjalzjg93N3avFjVStyZZz+A2Em+ZxKH5bNghw9UeylGQ==",
           "requires": {
             "tslib": "^1.9.0"
           }
diff --git a/yarn.lock b/yarn.lock
index c5629ece3..a50490ec7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1470,10 +1470,10 @@ augur-core@1.1.0:
     solidity-coverage "0.5.4"
     yargs "11.0.0"
 
-augur.js@6.7.0-1:
-  version "6.7.0-1"
-  resolved "https://registry.yarnpkg.com/augur.js/-/augur.js-6.7.0-1.tgz#312a33575fa19e42e106c9b9adcfcc1381cd5d93"
-  integrity sha512-B7Qv5nAlpE9kF1LHOd3Ai1rZg6jNcbZEqF8QUl4DVbNVP1xMaudP7hfBDwgtmix4iCH3k8q/9mA2yTqw6JPWVw==
+augur.js@6.7.1:
+  version "6.7.1"
+  resolved "https://registry.yarnpkg.com/augur.js/-/augur.js-6.7.1.tgz#8e18bb648845e66612a552264004982e19e52826"
+  integrity sha512-IxhfTdanJ7ADRo+PK2r5hqnvgOFVmUwAPj/K0tD53LABtx0CdNLX1Bf89zPXkn2d12/rpr4X4kMr3XvN5D87Bw==
   dependencies:
     async "1.5.2"
     augur-core "1.1.0"
@@ -1481,7 +1481,7 @@ augur.js@6.7.0-1:
     clone "2.1.1"
     columnify "1.5.4"
     ethereumjs-blockstream "4.0.1"
-    ethrpc "6.1.5"
+    ethrpc "6.2.2"
     event-emitter "0.3.5"
     immutable-delete "1.1.0"
     keccak "1.2.0"
@@ -2959,7 +2959,7 @@ commander@2.11.0:
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.11.0.tgz#157152fd1e7a6c8d98a5b715cf376df928004563"
   integrity sha512-b0553uYA5YAEGgyYIGYROzKQ7X5RAqedkfjiZxwi0kL1g3bOaBNNZfYkzt/CL0umgD5wc9Jec2FbB98CjkMRvQ==
 
-commander@^2.11.0, commander@^2.13.0, commander@^2.9.0, commander@~2.20.0:
+commander@^2.11.0, commander@^2.13.0, commander@^2.9.0:
   version "2.20.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.0.tgz#d58bb2b5c1ee8f87b0d340027e9e94e222c5a422"
   integrity sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ==
@@ -2969,6 +2969,11 @@ commander@~2.13.0:
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.13.0.tgz#6964bca67685df7c1f1430c584f07d7597885b9c"
   integrity sha512-MVuS359B+YzaWqjCL/c+22gfryv+mCBPHAv3zyVI2GN8EY6IRP8VwtasXn8jyyhvvq84R4ImN1OKRtcbIasjYA==
 
+commander@~2.20.3:
+  version "2.20.3"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.3.tgz#fd485e84c03eb4881c20722ba48035e8531aeb33"
+  integrity sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==
+
 commondir@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/commondir/-/commondir-1.0.1.tgz#ddd800da0c66127393cca5950ea968a3aaf1253b"
@@ -4129,10 +4134,10 @@ ethjs-util@^0.1.3:
     is-hex-prefixed "1.0.0"
     strip-hex-prefix "1.0.0"
 
-ethrpc@6.1.5:
-  version "6.1.5"
-  resolved "https://registry.yarnpkg.com/ethrpc/-/ethrpc-6.1.5.tgz#32269d41d9499f3aec1fac6545df64c5806f75a3"
-  integrity sha512-RE1zNO4fdLfKHU0eepKbzRtklKS0vq9G7/UB70fwn3fsCIujMl5ZPCN4LozaXaCYLx/4aGOoUalHctbxTYzlfw==
+ethrpc@6.2.1:
+  version "6.2.1"
+  resolved "https://registry.yarnpkg.com/ethrpc/-/ethrpc-6.2.1.tgz#fa8d553004e36b76797cf99820d34aaf72850abb"
+  integrity sha512-WB+0VUvKoXHBsH5z9vlPv1nBMMF81uRVVWKcDSVOzv0AafH0vwMZqPRyU8SKUOHdlDNC9+HK8QBGlysvB6cdKg==
   dependencies:
     async "2.6.0"
     bignumber.js "6.0.0"
@@ -4143,7 +4148,32 @@ ethrpc@6.1.5:
     ethereumjs-tx "1.3.1"
     immutable-delete "1.0.1"
     keccak "1.2.0"
-    lodash "4.17.10"
+    lodash "4.17.15"
+    oboe "2.1.3"
+    postinstall-build "5.0.1"
+    redux "3.6.0"
+    redux-thunk-subscribe "1.0.3"
+    speedomatic "2.1.5"
+    uuid "3.0.1"
+  optionalDependencies:
+    request "2.85.0"
+    websocket "1.0.26"
+
+ethrpc@6.2.2:
+  version "6.2.2"
+  resolved "https://registry.yarnpkg.com/ethrpc/-/ethrpc-6.2.2.tgz#2df5788fb2ae1bc5b3d00a5e7ca89c51e56c21f1"
+  integrity sha512-D3sMayCq1EOD0wBeiOwJjdHH9SpXwiKTN0SMLHPuFTLc5c9wEeMb6ceE1M17cXPcevtI+09UlvV+w/fE3Jd+Sw==
+  dependencies:
+    async "2.6.0"
+    bignumber.js "6.0.0"
+    browser-request "0.3.3"
+    clone "2.1.1"
+    es6-promise "4.2.4"
+    ethereumjs-blockstream "7.0.0"
+    ethereumjs-tx "1.3.1"
+    immutable-delete "1.0.1"
+    keccak "1.2.0"
+    lodash "4.17.15"
     oboe "2.1.3"
     postinstall-build "5.0.1"
     redux "3.6.0"
@@ -4994,13 +5024,14 @@ growly@^1.3.0:
   integrity sha1-8QdIy+dq+WS3yWyTxrzCivEgwIE=
 
 handlebars@^4.0.1, handlebars@^4.0.3:
-  version "4.1.2"
-  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.1.2.tgz#b6b37c1ced0306b221e094fc7aca3ec23b131b67"
-  integrity sha512-nvfrjqvt9xQ8Z/w0ijewdD/vvWDTOweBUm96NTr66Wfvo1mJenBLwcYmPs3TIBP5ruzYGD7Hx/DaM9RmhroGPw==
+  version "4.7.6"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.7.6.tgz#d4c05c1baf90e9945f77aa68a7a219aa4a7df74e"
+  integrity sha512-1f2BACcBfiwAfStCKZNrUCgqNZkGsAT7UM3kkYtXuLo0KnaVfjKOyf7PRzB6++aK9STyT1Pd2ZCPe3EGOXleXA==
   dependencies:
+    minimist "^1.2.5"
     neo-async "^2.6.0"
-    optimist "^0.6.1"
     source-map "^0.6.1"
+    wordwrap "^1.0.0"
   optionalDependencies:
     uglify-js "^3.1.4"
 
@@ -6712,6 +6743,11 @@ lodash@4.17.11, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.17.10, lodash@^4.17.11
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
   integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
 
+lodash@4.17.15:
+  version "4.17.15"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
+  integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
+
 log-driver@^1.2.5:
   version "1.2.7"
   resolved "https://registry.yarnpkg.com/log-driver/-/log-driver-1.2.7.tgz#63b95021f0702fedfa2c9bb0a24e7797d71871d8"
@@ -7012,7 +7048,7 @@ minimist@0.0.8:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
   integrity sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=
 
-minimist@1.2.0, minimist@^1.1.1, minimist@^1.2.0:
+minimist@1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
   integrity sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=
@@ -7022,10 +7058,10 @@ minimist@^0.1.0:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.1.0.tgz#99df657a52574c21c9057497df742790b2b4c0de"
   integrity sha1-md9lelJXTCHJBXSX33QnkLK0wN4=
 
-minimist@~0.0.1:
-  version "0.0.10"
-  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
-  integrity sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=
+minimist@^1.1.1, minimist@^1.2.0, minimist@^1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
+  integrity sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==
 
 minipass@^2.2.1, minipass@^2.3.4:
   version "2.3.5"
@@ -7163,7 +7199,7 @@ natural-compare@^1.4.0:
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
   integrity sha1-Sr6/7tdUHywnrPspvbvRXI1bpPc=
 
-needle@^2.2.0, needle@^2.2.1:
+needle@^2.2.1:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/needle/-/needle-2.3.0.tgz#ce3fea21197267bacb310705a7bbe24f2a3a3492"
   integrity sha512-QBZu7aAFR0522EyaXZM0FZ9GLpq6lvQ3uq8gteiDUp7wKdy0lSd2hPlgFwVuW1CBkfEs9PfDQsQzZghLs/psdg==
@@ -7178,9 +7214,9 @@ negotiator@0.6.1:
   integrity sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk=
 
 neo-async@^2.5.0, neo-async@^2.6.0:
-  version "2.6.0"
-  resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.0.tgz#b9d15e4d71c6762908654b5183ed38b753340835"
-  integrity sha512-MFh0d/Wa7vkKO3Y3LlacqAEeHK0mckVqzDieUKTT+KGxi+zIpeVsFxymkIiRpbpDziHc290Xr9A1O4Om7otoRA==
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.1.tgz#ac27ada66167fa8849a6addd837f6b189ad2081c"
+  integrity sha512-iyam8fBuCUpWeKPGpaNMetEocMt364qkCsfL9JuhjXX6dRnguRVOfk2GZaDpPjcOKiiXCPINZC1GczQ7iTq3Zw==
 
 next-tick@^1.0.0:
   version "1.0.0"
@@ -7278,18 +7314,18 @@ node-notifier@^5.2.1:
     shellwords "^0.1.1"
     which "^1.3.0"
 
-node-pre-gyp@0.10.0:
-  version "0.10.0"
-  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.10.0.tgz#6e4ef5bb5c5203c6552448828c852c40111aac46"
-  integrity sha512-G7kEonQLRbcA/mOoFoxvlMrw6Q6dPf92+t/l0DFSMuSlDoWaI9JWIyPwK0jyE1bph//CUEL65/Fz1m2vJbmjQQ==
+node-pre-gyp@0.13.0:
+  version "0.13.0"
+  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.13.0.tgz#df9ab7b68dd6498137717838e4f92a33fc9daa42"
+  integrity sha512-Md1D3xnEne8b/HGVQkZZwV27WUi1ZRuZBij24TNaZwUPU3ZAFtvT6xxJGaUVillfmMKnn5oD1HoGsp2Ftik7SQ==
   dependencies:
     detect-libc "^1.0.2"
     mkdirp "^0.5.1"
-    needle "^2.2.0"
+    needle "^2.2.1"
     nopt "^4.0.1"
     npm-packlist "^1.1.6"
     npmlog "^4.0.2"
-    rc "^1.1.7"
+    rc "^1.2.7"
     rimraf "^2.6.1"
     semver "^5.3.0"
     tar "^4"
@@ -7581,14 +7617,6 @@ onetime@^2.0.0:
   dependencies:
     mimic-fn "^1.0.0"
 
-optimist@^0.6.1:
-  version "0.6.1"
-  resolved "https://registry.yarnpkg.com/optimist/-/optimist-0.6.1.tgz#da3ea74686fa21a19a111c326e90eb15a0196686"
-  integrity sha1-2j6nRob6IaGaERwybpDrFaAZZoY=
-  dependencies:
-    minimist "~0.0.1"
-    wordwrap "~0.0.2"
-
 optionator@^0.8.1, optionator@^0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.8.2.tgz#364c5e409d3f4d6301d6c0b4c05bba50180aeb64"
@@ -8328,7 +8356,7 @@ raw-body@2.3.2:
     iconv-lite "0.4.19"
     unpipe "1.0.0"
 
-rc@^1.1.6, rc@^1.1.7, rc@^1.2.7:
+rc@^1.1.6, rc@^1.2.7:
   version "1.2.8"
   resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.8.tgz#cd924bf5200a075b83c188cd6b9e211b7fc0d3ed"
   integrity sha512-y3bGgqKj3QBdxLbLkomlohkvsA8gdAiUQlSBJnBhfn+BPxg4bc62d8TcBW15wavDfgexCgccckhcZvywyQYPOw==
@@ -10027,11 +10055,11 @@ uglify-js@^2.8.29:
     uglify-to-browserify "~1.0.0"
 
 uglify-js@^3.1.4:
-  version "3.5.6"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.5.6.tgz#8a5f8a06ee7415ac1fa302f4623bc7344b553da4"
-  integrity sha512-YDKRX8F0Y+Jr7LhoVk0n4G7ltR3Y7qFAj+DtVBthlOgCcIj1hyMigCfousVfn9HKmvJ+qiFlLDwaHx44/e5ZKw==
+  version "3.8.1"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.8.1.tgz#43bb15ce6f545eaa0a64c49fd29375ea09fa0f93"
+  integrity sha512-W7KxyzeaQmZvUFbGj4+YFshhVrMBGSg2IbcYAjGWGvx8DHvJMclbTDMpffdxFUGPBHjIytk7KJUR/KUXstUGDw==
   dependencies:
-    commander "~2.20.0"
+    commander "~2.20.3"
     source-map "~0.6.1"
 
 uglify-to-browserify@~1.0.0:
@@ -10598,11 +10626,6 @@ wordwrap@^1.0.0, wordwrap@~1.0.0:
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
   integrity sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=
 
-wordwrap@~0.0.2:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
-  integrity sha1-o9XabNXAvAAI03I0u68b7WMFkQc=
-
 worker-farm@^1.5.2:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/worker-farm/-/worker-farm-1.6.0.tgz#aecc405976fab5a95526180846f0dba288f3a4a0"