Use git protocol rather than https for bundled rspec gems.
Use git protocol rather than https for bundled rspec gems.

The https url failed when travis-ci tried to build rspec-core.  This might fix it.

Fetching https://github.com/rspec/rspec-expectations.git
error:  while accessing https://github.com/rspec/rspec-expectations.git/info/refs

fatal: HTTP request failed
An error has occurred in git when running `git clone "https://github.com/rspec/rspec-expectations.git" "/home/travis/.rvm/gems/ruby-1.8.7-p330/cache/bundler/git/rspec-expectations-1c518ec8c1880aa81941a7a8c7fa04b29ec74c91" --bare --no-hardlinks`. Cannot complete bundling.
danascheider/rspec-core,dg-ratiodata/rspec-core,SoldierCoder/rspec-core,Teino1978-Corp/Teino1978-Corp-rspec-core,h4ck3rm1k3/rspec-core,arronmabrey/rspec-core,iguchi1124/rspec-core,xmik/rspec-core,a-suenami/rspec-core,a-suenami/rspec-core,iguchi1124/rspec-core,dg-ratiodata/rspec-core,maclover7/rspec-core,urbanautomaton/rspec-core,pandabrand/rspec-core,h4ck3rm1k3/rspec-core,eugeneius/rspec-core,azbshiri/rspec-core,rspec/rspec-core,r7kamura/rspec-core,edwardpark/rspec-core,h4ck3rm1k3/rspec-core,arronmabrey/rspec-core,rkh/rspec-core,SoldierCoder/rspec-core,rkh/rspec-core,xmik/rspec-core,iguchi1124/rspec-core,urbanautomaton/rspec-core,Teino1978-Corp/Teino1978-Corp-rspec-core,avantcredit/rspec-core,leg100/rspec-core,avantcredit/rspec-core,arronmabrey/rspec-core,yaoshipu/rspec-core,rspec/rspec-core,xmik/rspec-core,travis-repos/rspec-core,eugeneius/rspec-core,pandabrand/rspec-core,azbshiri/rspec-core,maclover7/rspec-core,r7kamura/rspec-core,danascheider/rspec-core,AlexKVal/rspec-core,edwardpark/rspec-core,pandabrand/rspec-core,behnaaz/rspec-core,dg-ratiodata/rspec-core,rkh/rspec-core,azbshiri/rspec-core,avantcredit/rspec-core,slawosz/rspec-core,irfanah/rspec-core,irfanah/rspec-core,danascheider/rspec-core,a-suenami/rspec-core,SoldierCoder/rspec-core,edwardpark/rspec-core,Teino1978-Corp/Teino1978-Corp-rspec-core,urbanautomaton/rspec-core,irfanah/rspec-core,leg100/rspec-core,rspec/rspec-core,behnaaz/rspec-core,leg100/rspec-core,yaoshipu/rspec-core,eugeneius/rspec-core,behnaaz/rspec-core,maclover7/rspec-core,yaoshipu/rspec-core