Bug fixes:
- Wrong message when attempt to open boxes while inventory is full. (bugreport:9170)
- Revert a change on d670952, wrong commented line makes misc damage won't be relected. (bugreport:9185)
- Fixed 'devotion_rdamage' doesn't work for Magic Skill. (bugreport:8906)
- Follow up 8a81940, use vending/buyingstore db accessor on searchstore_query() for db_iterator()

Note for 'devotion_rdamage' for magic reflect.
- When this active to reflect magic damage, it still displays dummy damage value on devoted player, and this is custom config at first place. :P

Signed-off-by: Cydh Ramdh <house.bad@gmail.com>