Bug Fixes
* Removed unused guild aura leftovers and fixed some other issues with setting the guild aura. (bugreport:8892)
* Fixed Fire Expansion Acid to be a magic type attack. Thanks to exneval.
* Cleaned up some remaining issues with Issen. (bugreport:8905)
* 16th Night (Izayoi) should remove fixed cast time from all skills.
* Circle of Nature is now part of Group B songs.
* Updated Reading Spell Book spell memorization to official.
* Updated homunculus skill cooldowns.
* Added missing Holy element bonus for Hesperus Lit.
* Fixed Coluseo Heal and Praefatio not giving a party bonus. (bugreport:8904)
* Fixed the status icon for ALL_RIDING not being displayed at login.
* Adjusted the notice display order when players login. (Hercules df1952d)
* Self skills can now be used while storage is open. (Hercules 6f6a6b3)
* Cleaned up SC_NOCHAT/Manner system. (Hercules 94ef1ee)
Follow up to 1d1a58c to revert some Reading Spellbook conversions.
Merge branch 'rathena/master'