Registered Only Server

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.
Requested Cleanup

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

Removed stale commented lines from about window code.
Merge remote-tracking branch 'upstream/master' into registered-user-only-server

Conflicts:
	common/server.cpp
	common/server_protocolhandler.cpp
	servatrice/src/servatrice.cpp
Merge remote-tracking branch 'upstream/master' into registered-user-only-server
Cleaned up potential memory leak
Merge pull request #179 from woogerboy21/registered-user-only-server

Registered Only Server