BETA: Minor changes.
	* Added some missing !JavaDocs.
	* Using Java's `HashMap` at `SkillData` instead of Trove's map implementation.
	* Changed XXX in comments for TODO, so they will display properly on Eclipse's task lists.

git-svn-id: http://svn.l2jserver.com/branches/unstable/L2J_Server_BETA@6443 d34dfa0f-f91c-0410-86dd-cf06f19dd0ad