spawn_level attribute
Change indentation to tabs.
Merge pull request #108 from clintbellanger/master

merge from master
Merge pull request #107 from stefanbeller/771

Change indentation to tabs.
Merge pull request #111 from clintbellanger/master

merge from master
npc requires_status and requires_not
update comments
Merge pull request #114 from clintbellanger/master

merge from master
visible_requires_status for menu powers
Replace requires_not by requires_not_status to be more consistent in style

Closes #407
Use a list of states for the requires[_not]_status in NPC

This is consistent with the quest events, which can have a list of
states as well. Maybe we should think about having that code only once
in a generic fashion.
Merge pull request #118 from stefanbeller/proposal772

NPC requires_status consistent to quest requires_status
Adapt to coding style
Convert Power_Menu_Cell::visible_requires_[status,not] to lists
Merge pull request #121 from stefanbeller/779

Convert Power_Menu_Cell::visible_requires_[status,not] to lists
Merge pull request #711 from RyanDansie/spawn_level

Spawn power attribute spawn_level
Merge pull request #784 from stefanbeller/requires_not

Replace requires_not by requires_not_status to be more consistent in style
Merge pull request #772 from RyanDansie/npc_requires_not

NPC requires_status and requires_not
Merge pull request #779 from RyanDansie/power_menu_requires_status

Menu powers hidden depending on quest status