Typo kill and minor refactoring.
Removed a never used variable.
Removed useless initialization.
Merge branch 'master' of https://github.com/CleverRaven/Cataclysm-DDA into iuse-initialization
Fix so explored tiles show up on minimap

The explored function is great on the overmap, but it doesn't mirror on to the minimap. This fix does that.
Capitalization fix.
Added t_door_c_peep. ( door with peephole )
Added basic (e)xamine function
Unified the implementations of the tent, large tent, and shelter.
Predicate method simplified.
Fixed a typo.
Added doors with working peephole.
Merge pull request #9419 from mafagafogigante/dependance-dependence

Fixed a typo.
RemoveDirtyWaterAsComponent

Mixing with juice should not magically clean the water. Need boiling for
that.
Merge pull request #9423 from Robik81/ColdDrinksFix

Cold drinks fix
Mapgen fixes
Added item: 'peephole'
Added construction: 'Build Door: Step 3 - Peephole'
Added new tool quality: 'DRILL'
Added new tool quality: cordless_drill
Added peephole to door deconstruct/smash.
Change game::run_mode to be an enumeration.
Rename game::run_mode to the more appropriate safe_mode,

Also renames the enum name for consistency.
Added item 'peephole' to spawn with a few different item groups.