Cap reflected damage to max HP of the one reflecting - Fixes bugreport:7375
Minor fix to Reflect Damage timer going over time limit - Fixes bugreport:7511
Fix npc_idle_timer error when SECURE_NPC_TIMEOUT is not enabled (lighta) - Fixes bugreport:7623
Fix freezing issues after being forcefully closed out of an NPC (lighta) - Fixes bugreport:7615
Follow up to r17300 - Fix /guildinvite issue (lighta) bugreport:7612 (Now available for 20120410)
Some fixing up of Crescent Blow

git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@17307 54d463be-8e91-2dee-dedb-b68131a5f0ec