Update gems to pull public ones from http so we don't need to worry about keys

Gemfile

@@ -24,12 +24,12 @@ gem 'bson_ext'
 gem 'delayed_job'
 gem 'delayed_job_mongoid', :git => 'https://github.com/dementrock/delayed_job_mongoid.git'
 
-gem 'mongoid-tree', :git => 'git@github.com:dementrock/mongoid-tree.git'
-gem 'voteable_mongo', :git => 'git@github.com:dementrock/voteable_mongo.git'
-gem 'mongoid_taggable_with_context', :git => 'git@github.com:dementrock/mongoid_taggable_with_context.git'
-gem 'mongoid_magic_counter_cache', :git => 'git@github.com:dementrock/mongoid-magic-counter-cache.git'
+gem 'mongoid-tree', :git => 'https://github.com/dementrock/mongoid-tree.git'
+gem 'voteable_mongo', :git => 'https://github.com/dementrock/voteable_mongo.git'
+gem 'mongoid_taggable_with_context', :git => 'https://github.com/dementrock/mongoid_taggable_with_context.git'
+gem 'mongoid_magic_counter_cache', :git => 'https://github.com/dementrock/mongoid-magic-counter-cache.git'
 
-gem 'kaminari', :require => 'kaminari/sinatra', :git => 'git@github.com:dementrock/kaminari.git'
+gem 'kaminari', :require => 'kaminari/sinatra', :git => 'https://github.com/dementrock/kaminari.git'
 
 gem 'faker'