Global/group chat

Global chat and group chat are implemented. Guess I forgot to upload
them. Whoops! Also contains partial work for map rendering.
Create Account Scrollbar (Issue #3)

Fixed the scroll bar for the Create Account scrolling dialog box. It
uses the line-by-line method now instead of LabelRender (old method,
hacky for days). LabelRender has been fully deprecated and removed from
the source.