Update CI

Merge pull request #5 from JuliaString/spj/updateci

Change to use GitHub Actions

v1.0.0

Update scripts, add version to Project.toml

Update scripts & Project.toml for Julia v1.1, drop Julia v0.x support

v0.2.0

Update for Julia v1.1, drop support for v0.x

Update for new StrAPI

v0.1.9

Update for new StrAPI

Update to cap at v2- of Julia

v0.1.8

Update to cap at < version 2

Update REQUIRE & .travis.yml

v0.1.7

Allow failures on nightly for Windows

Passing all tests, v06 - nightlies

v0.1.6

Further Julia v1.0 updates

Updates for v1.0

v0.1.5

Update Project.toml for v1.0

Update again for Pkg3

v0.1.4

Update build scripts for v0.7

Fixes for Pkg3 & Windows

v0.1.3

Fixes for Pkg3