Implemented /summonuser, /forbidconnect, /cutoff, /attackdisable, /attakcenable (yes that's *their* typo), though the latter 2 aren't currently checked server-side.
BUGFIX: Fixed a bad max level check -- level 83 characters can now login.
New Appends Function for voids
Warehouse item list with memcpy

it can use in the future.
Merge pull request #38 from AngaraMerkezz/master

ByteBuffer supports more generic appends (uint8* method this effectively replaces should be removed) & inn item list uses memcpy() instead.