Fix gh browse README
Merge pull request #45 from jingweno/fix_browse_readme

Wrong command in README (browse section)
Add rake task to build for specific env
Fix linux dropbox path
Use binary for homebrew recipe
Update binaries links
Add remove target step
Explicit about DROPBOX_DIR on windows
Fix pull usage
Add checkout stub
Add git.Checkout
Implement checkout
Fix help bug
Implement add remote for current user
Check remote
Compare with remote
Use git.Spawn
Remove unused methods
Parse project from URL
Use user