Email might be null when user set their email as private

Author: da0shi

src/main/scala/codecheck/github/models/User.scala

@@ -7,7 +7,7 @@ import org.json4s.JsonDSL._
 case class User(value: JValue) extends AbstractJson(value) {
   def login: String = get("login")
   def id: Long = get("id").toLong
-  def email: String = get("email")
+  def email: Option[String] = opt("email")
   def name: String = get("name")
   def blog: String = get("blog")
   def company: String = get("company")
@@ -25,4 +25,4 @@ case class UserInput (
 	location: Option[String] = None,
 	hireable: Option[Boolean] = None,
 	bio: Option[String] = None
-) extends AbstractInput
+) extends AbstractInput