Add fps limiter for background window.
Background fps limit should not be 0 (possible div by 0).
gravwell generators online.
Add TFTD article outline
fix non-square pixels option
add battlescape background colour
comments
Force dead unit recovery to use the unit's corpseGeo instead of the battle corpse item (might fix mod alien recoveries).
depth slider for the new battle menu
add helmets underwater
fix r-click cancel stuff
fix cyrillic letter Б
mixed doubles
Fix gcc compiler warnings from -Wall, including:

unused variables or methods (-Wunused)
uninitialized variables (-Wuninitialized)
signed/unsigned comparisons (-Wsign-compare)
order of initiliazers (-Wreorder)
just some palette depth stuff, nothing to see here
reduce copypasta
only look at SDL_Event.key for key-type events
make converted soldier zombies visible to begin with.
Merge pull request #883 from ajschult/keyUMR

only look at SDL_Event.key for key-type events
Merge pull request #882 from ajschult/warnings

Fix gcc compiler warnings from -Wall