Add support for go get

Hello currently we are developing Go and using Stash to hold our source code.
Currently the 'go get' command doesn't work quite well with stash.

if i do 'go get' i get the following:
stash/organization/myproj.git/
as the directoy structure
currently there are some implementations that the .git won't get appended.

> http://golang.org/cmd/go/#hdr-Remote_import_paths

it would be great if this is possible at all.