> Follow-up to r17065:
* Further harmonized skill_id and skill_lv variables.
* Fixed trap skill item requirement checking for signed return and being set to unsigned variable. (bugreport:7085, bugreport:7114)

git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@17076 54d463be-8e91-2dee-dedb-b68131a5f0ec