Replaced 'getserverdef' command with 'script_hardcoded_constants' function in source. These constants can now be directly accessed in scripts. (Hercules 950e3eb)
- Relocated 'Option_*' constants from 'db/const.txt' to source; added OPTION_COSTUME compound. (Hercules a5728fd)
- Added MAX_CHAT_USERS define. (Hercules 950e3eb)
- Follow-up ca9642a: applied 'Loc' changes to Pre-Renewal database.

Signed-off-by: Euphy <euphy.raliel@rathena.org>