BETA: Fixing minor typo causing buy lists used from L2MerchantSummonInstance to sell items with x51 price instead of x1.5
    * Removing code duplicates after [6149]
    * L2Crest now implements IIdentifiable interface

git-svn-id: http://svn.l2jserver.com/branches/unstable/L2J_Server_BETA@6159 d34dfa0f-f91c-0410-86dd-cf06f19dd0ad