- Strongly improved the structure of status_get_sc_def so it's a lot easier to apply official formulas and make sure the checks are applied in the correct order
- In the process, fixed the effect of luk on status changes and removed the static 3% resistance that has been proven to not exist (97 vit, 1 luk can get stunned on officials)
- As there is no general luk resistance as it depends on each status change, removed the luk_status_def configurations
- Updated the success chance of Decrease Agi to the formula that was extracted from Aegis (blevel/5 + int/5 + skill_lv*3 + 50)

Note: I tested all the status changes thoroughly, but as this is a quite large update, it would be nice if someone could cross-check it.

Note2: Renewal status resistances (for pre-renewal status changes) are currently not implemented in rAthena at all. They need to be added in another update.

git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@17201 54d463be-8e91-2dee-dedb-b68131a5f0ec