run go-fmt, fix imports, choose a default version of "master" if not specified for a given repo in deps.json
restore imports back to github.com/vube/depman
expand default specification of version if not specified in deps.json to also other other vcs types
run go fmt
updating to respect the project's conventions wrt. import splitting, updated hg's default branch name to tip
Further updates to imports to respect project convention re. separation
Merge pull request #12 from abawany/master

Enable depman to not require a default branch for deps, run go fmt, fix imports