Moved FRL, and IGN server commands into the FSession class.
Moved the ignore list into the FSession class.
bugfix: Ignore list handling should now be fully case insensitve. This fixes the following bugs (and possibly more):
bugfix: RP ads from ignored users should now be hidden.
bugfix: '/unignore' will now work if the character name is mixed or upper case.
bugfix: The context menu for characters inside channels should now give the option to unignore characters (if they're already ignored and they're name is mixed or upper case).