Fix malformed dependency_links
Fix malformed dependency_links

`AssertionError: Sorry, 'git://github.com/marquee/content@v0.1.0-alpha#egg=content-0.1.0' is a malformed VCS url. The format is <vcs>+<protocol>://<url>, e.g. svn+http://myrepo/svn/MyApp#egg=MyApp`
marquee/composer