Change Conversation constructor to call setConversation, modify reddit to
set conversation on all parsed messages, change ConversationController to
setconversation in seed, fix duplicate dependency in pom. Issue #50
Provides an ordering for conversations and messages. Issue #43, #37, and #32.
Removes unneeded ordering in ui (it will be correctly ordered in the json).
Populates created field in ui.
Corrects conversation subject index in ui.
Merge branch 'master' into daniel
Somewhat-hacky workaround for Twilio Conversations. Issue #46.