Support setting the path to goimports binary and use that over computed path
Prevent GOROOT and Go AppEngine SDK root to be the same
Removed check for GOPATH/bin as it seems that GAE users do not have that always
GOPATH settings cosmetics
Misc changes
GO_GOPATH_PATH removal
Populate the settings from the SDKs
Merge pull request #888 from dlsniper/fix-879

Properly handle goimports, GOPATH and go settings