Use https for git sources

Some proxies deny traffic over the git transport.

Change-Id: I126b1abe3bb42f2ed7a0a9e0c17b66f8cfc44bdf

Gemfile

@@ -3,14 +3,14 @@ source "http://rubygems.org"
 gem 'bundler', '>= 1.0.10'
 gem 'rake'
 gem 'nats', :require => 'nats/client'
-gem 'eventmachine', :git => 'git://github.com/cloudfoundry/eventmachine.git', :branch => 'release-0.12.11-cf'
+gem 'eventmachine', :git => 'https://github.com/cloudfoundry/eventmachine.git', :branch => 'release-0.12.11-cf'
 
 gem "http_parser.rb", :require => "http/parser"
 gem "yajl-ruby", :require => ["yajl", "yajl/json_gem"]
 gem "sinatra"
 
-gem 'vcap_common', '~> 1.0.9', :git => 'git://github.com/cloudfoundry/vcap-common.git', :ref => 'c91898e1'
-gem 'vcap_logging', :require => ['vcap/logging'], :git => 'git://github.com/cloudfoundry/common.git'
+gem 'vcap_common', '~> 1.0.9', :git => 'https://github.com/cloudfoundry/vcap-common.git', :ref => 'c91898e1'
+gem 'vcap_logging', :require => ['vcap/logging'], :git => 'https://github.com/cloudfoundry/common.git'
 
 group :test do
   gem "rspec"

Gemfile.lock

@@ -1,19 +1,19 @@
 GIT
-  remote: git://github.com/cloudfoundry/common.git
-  revision: b96ec1192d961925d91e17ca3831f8547489d918
+  remote: https://github.com/cloudfoundry/common.git
+  revision: 309a39e1ff876efec3ec568fcc7e902d857f8107
   specs:
     vcap_logging (1.0.2)
       rake
 
 GIT
-  remote: git://github.com/cloudfoundry/eventmachine.git
+  remote: https://github.com/cloudfoundry/eventmachine.git
   revision: 2806c630d8631d5dcf9fb2555f665b829052aabe
   branch: release-0.12.11-cf
   specs:
     eventmachine (0.12.11.cloudfoundry.3)
 
 GIT
-  remote: git://github.com/cloudfoundry/vcap-common.git
+  remote: https://github.com/cloudfoundry/vcap-common.git
   revision: c91898e1d74f23446d1d7fe2382df6ace071c0ad
   ref: c91898e1
   specs: