refactor ConversationsController, move query builing to User model
Merge pull request #4547 from Raven24/conversations

refactor conversations_controller a bit
refactor twitter service model
Merge pull request #4387 from MrZYX/refactor_twitter

refactor twitter service model
refactor conversations_controller#create
Merge pull request #4551 from Raven24/conversations

refactor conversations_controller#create
main repository