fixed display of list of users when it is long
Merge branch 'chat' of https://github.com/ChildrenOfUr/coUclient into chat
added chat bubble
bug fixes
changed chat error messages to be displayed on an overlay so that the user knows that they cannot interract with chat at the moment
limited chat history to 100 messages so that the scrollbar doesn't become super small
show chat from the user directly instead of echoing from server, better for laggy people
Merge branch 'chat' into mobilelayout
started mobile layout version of the chat