git -> https

Changes gems to use https path rather than git path. Git path does not
work behind some firewalls and/or proxies.

Gemfile

@@ -105,7 +105,7 @@ gem 'settingslogic'
 # github-linquist needs pygments 0.4.2 but Gollum 2.4.11
 # requires pygments 0.3.2. The latest master Gollum has been updated
 # to use pygments 0.4.2. Change this after next Gollum release.
-gem "gollum", "~> 2.4.0", git: "git://github.com/gollum/gollum.git", ref: "5dcd3c8c8f"
+gem "gollum", "~> 2.4.0", git: "https://github.com/gollum/gollum.git", ref: "5dcd3c8c8f"
 # Misc
 gem "foreman"

Gemfile.lock

 GIT
-  remote: git://github.com/gollum/gollum.git
+  remote: https://github.com/gollum/gollum.git
   revision: 5dcd3c8c8f68158e43ff79861279088ee56d0ebe
   ref: 5dcd3c8c8f
   specs: