Added party script commands and documentation (thank Euphy)
- party_create "<party name>"{,<char id>{,<item share: 0-no. 1-yes>{,<item share type: 0-favorite. 1-shared>}}};
- party_addmember <party id>,<char id>;
- party_delmember {<char id>};
- party_changeleader <party id>,<char id>;
- party_changeoption <party id>,<option>,<flag>;
- party_destroy <party id>;
Added script command for checking player's language
- checklang()
Mapflag related
- Add nocommand mapflag documentation
- Added notomb at @mapinfo message
- some changes at @mapflag
Attempt to fix error on 'skill_produce_mix' while deleting materials


git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@17414 54d463be-8e91-2dee-dedb-b68131a5f0ec
Follow-up r17414
- previous party_delmember can't remove the offline member, so it's changed: party_delmember {<char_id>,<party_id>}
- remove unnecessary script_command checklang() - it's my bad

Fixed Basilica bugs as bugreport:2398 and bugreport:2673 (akinari)

git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@17415 54d463be-8e91-2dee-dedb-b68131a5f0ec
* Added 'Eff_Burning' status, used in Banaspaty Card; fixed 'Eff_Fear'. (bugreport:7461, Hercules 5de6aab)
* Updates to SC_BURNING and SC_FREEZING durations. (Hercules 0395610)
* Minor fixes to Eden Quests 41-55.
* Fixed incorrect documentation for 'instance_id()'.
* Added Malaya instances to custom Warper.
* 'getmonsterinfo' no longer outputs an error when the supplied mob doesn't exist. (bugreport:7792)
* Follow-up r17410, fixed a typo in a label name.

git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@17416 54d463be-8e91-2dee-dedb-b68131a5f0ec