Add check for when GOPATH is null
Unified the versions of plugin in history to match reality / github milestones
Fix tests
Changed GOPATH detection to work with only one entry
Merge pull request #319 from dlsniper/versions

Unified the versions of plugin in history to match github milestones
Merge pull request #317 from dlsniper/fix-null-gopath

Add check for when GOPATH is null
Merge pull request #321 from dlsniper/fix-tests

Fix tests