- renamed table 'questlog' to 'quest' to avoid misunderstanding
- updated main.sql
- fixed the server can't load more than 16 quests
- removed the MAX_QUEST limit. tests show the client can handle more than 100 quests.
git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@13963 54d463be-8e91-2dee-dedb-b68131a5f0ec
