Added 'auto connect' checkbox to connect dialog. When the main window becomes active for the first time and auto connect is set to true, it will call connectToServer at that point.

Removed stale commented lines from about window code.

Corrected tab to 4 space (per request)
Moved regonly option under authentication ini location (per request)

Implemented the ability to set the server to only allow registered
users.  Also updated client to reflect the log-in rejection as well as
put a check in place for the server to not start if db connection is not
available yet registration is required.

Specifically this should cover people connecting with a username of
"\u200C"

deck editor is tab, replay viewer is tab, deck editor shown by default, cache window geometry between sessions, 'open this deck in deck editor' open in game

context menu for a message sender's name in chat; also display the user level icon next to the name; minor consistency and type-safety changes