Use ls-remote --get-url to get the git URI
Use ls-remote --get-url to get the git URI

Addresses GH #258

Using url.<remote>.insteadOf, one may create shorthand URLs (such as
work:217501848826246411f12ca50310372efeee4998@github.com:MyCompany/project).  This
patch uses ls-remote to resolve the alias for such URLS to their
actual destination, which allows the gem to correctly determine the
slug for the repo.  ls-remote --get-url has been present since
Git v1.7.5, so hopefully that's old enough.

Zearin/travis.rb,Zearin/travis.rb,doct15/travis.rb,snordhausen/travis.rb,vinaykaradia/rubyBuildClone,travis-ci/travis.rb,prabagithub/travis.rb,deivid-rodriguez/travis.rb,deivid-rodriguez/travis.rb,deivid-rodriguez/travis.rb,whip112/travis.rb,travis-ci/travis.rb,chriskuehl/travis.rb,prabagithub/travis.rb,Zearin/travis.rb,danishkhan/travis.rb,whip112/travis.rb,whip112/travis.rb,doct15/travis.rb,vinaykaradia/rubyBuildClone,chriskuehl/travis.rb,vinaykaradia/rubyBuildClone,Tiger66639/travis.rb,snordhausen/travis.rb,prabagithub/travis.rb,Tiger66639/travis.rb,doct15/travis.rb,danishkhan/travis.rb,snordhausen/travis.rb,travis-ci/travis.rb,danishkhan/travis.rb,chriskuehl/travis.rb,Tiger66639/travis.rb