implemented convo switch in chat window
Merge pull request #75 from photonerddan/persist_message_in_chat_window

implemented convo switch in chat window
fixed bug on canceling out of adding users.
Merge pull request #77 from photonerddan/fix_cancel_button

fixed bug on canceling out of adding users.
Merge pull request #79 from photonerddan/frontend_dev

conversation minimize