gometalinter is installed in `go.gopath` and not into `go.toolsGopath`

[alex-slynko]

WE are using custom GOPATH for our code and system GOPATH for tools, but when I set "go.lintTool": "gometalinter" to equal "gometalinter" and clicked "Install all" for missing packages, it installed all the tools into custom GOPATH.

[ramya-rao-a]

This was intentional as gometalinter expects its linters to be in the GOPATH. If gometalinter was installed elsewhere along with its linters, then it fails with "can't find executable in $PATH`

But there is a way around it which is to pass the "toolsGopath" as additional GOPATH to the process that does the linting.

Fixed with 27038d1

[alex-slynko]

Thanks @ramya-rao-a

[ramya-rao-a]

gometalinter will now be installed in the go.toolsGopath in the latest update (0.6.64)