-fix bugreport:7458 (deleting associate timer before cleanup status)
-merge clif_guild_skillup and clif_skillup (old TODO)
-add implementation for packet : 0x8c7, 0x99f and 0x1c9, variant of ZC_SKILL_ENTRY (0x11f)
-replace some hardcoded skill_flag by enum values

-little cleanup in skill_attack and regroup some skill with same effect (blewcount, animation).
-rewritte combo handling to regroup info and not duplicate info.
-change eleanor skill to use SC_COMBO as memo instead SC_STYLE_CHANGE
-separate SC_TINDER_BREAKER from SC_CLOSE_CONFINE since they don't act same way
-change MH_SONIC_CRAW to one attack with multiple hit instead x attack.

git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@17229 54d463be-8e91-2dee-dedb-b68131a5f0ec