BETA: Reworked private store type to use enum instead of int.

Reviewed by: !UnAfraid

git-svn-id: http://svn.l2jserver.com/branches/unstable/L2J_Server_BETA@6331 d34dfa0f-f91c-0410-86dd-cf06f19dd0ad
BETA: Adding some !JavaDocs.

git-svn-id: http://svn.l2jserver.com/branches/unstable/L2J_Server_BETA@6332 d34dfa0f-f91c-0410-86dd-cf06f19dd0ad