* New shop script definition: `<map name>,<x>,<y>,<facing>%TAB%marketshop%TAB%<NPC Name>%TAB%<sprite id>,<itemid>:<price>:<quantity>{,<itemid>:<price>:<quantity>...}`
* Added script command to update shop NPC: 'npcshopupdate "<name>",<itemid>,<price>{,<stock>}'
* Added NPCMarketDB (DBMap) for market data persistance method.
* Added `market_table` definition for market table in conf/inter_athena.conf.
* Thank to @aleos89, @Lemongrass, @icxbb-xx, merged HerculesWS/Hercules@cf19b26.
NOTES:
* Minimum client needed 2013-12-23 (but this client has bugs there-and-there).
* There's new table, see `upgrade_20150327.sql`.
* Market shop doesn't support discount.
* Added items by script `npcshopitem` or `npchopadditem` will be assumed as persistance items, will be loaded on next script reload or server start even market_shop NPC does't list them (unless NPC is not exists, entries will be removed).
Signed-off-by: Cydh Ramdh <house.bad@gmail.com>
7d929a06a3