Implemented Guild PQ. Fixed a problem introduced earlier where negative
EXP would be deemed as "integer overflow", provoking many game breaking
issues as result.
Fixed a bug on guild creation process where the leadership would not be
assigned instantly to the guild leader (would need to change channels or
reconnect to take effect).
All Guild Alliances system is now functional. Tweaked guilds in order to
sync MapleGuildCharacter objects that were supposed to be the same when
being accessed from both MapleGuild and MapleCharacter classes.
ronancpl