reinstate g_keys - realized that atlas mode cannot call SDL_GetKeyState
main: use g_app_minimized etc. to use up less CPU time when app isn't
active (makes debugging more bearable)
This was SVN commit r3070.
Fix: Unix symbol resolver ignores NULL parameters like Windows resolver
instead of crashing.
Fix: Bugs and crashes in the input system, caused by wrong use of
SDL_BUTTON_* constants.
This was SVN commit r2984.
textureentry: add performance note
list, text: fix mousewheel direction
input: was going to add a deque to allow registering handlers in back
and front. obviated by minimap fix, though. cleaned up a bit and renamed
stuff (again, sigh).
loaderthunks: fixed weird alignment/padding warning
This was SVN commit r2979.
GUI/input code: moved g_active, g_keys etc. into ps/Globals; it has its
own input handler as well
all users of fopen(): add file_make_full_native_path to get correct path
even though current dir = system/
This was SVN commit r2954.
