BETA: Removed `L2SkillType` class and skill handlers.
	* Renamed `SkillTable` class to `SkillData`.
	* Renamed `SkillData#getInfo` method to `SkillData#getSkill`.
	* Renamed `L2Skill` class to `Skill`.
	* Renamed `L2SkillOpType` class to `SkillOperateType`.
	* Cleaned up `Skill` class removed all final modifiers from methods and made class final

Reviewed by: !UnAfraid, St3eT, Zoey76

git-svn-id: http://svn.l2jserver.com/branches/unstable/L2J_Server_BETA@6440 d34dfa0f-f91c-0410-86dd-cf06f19dd0ad
BETA: Changed external IP check URL the old site we were using was closed.

git-svn-id: http://svn.l2jserver.com/branches/unstable/L2J_Server_BETA@6441 d34dfa0f-f91c-0410-86dd-cf06f19dd0ad