Refactored settings window
Just some notes for future maintenance.
Merge remote-tracking branch 'slothlife/weather_save'
some ambient light cleanup
added lighting switching
updated credits file
added day lighting mode
added night lighting mode
added bright lighting mode
Play deathknockout/deathknockdown animations when appropriate
ToggleAI: Report current status on toggle
Fixes #1224: Store class name instead of id in savegame header
Savegame dialog: use locale-aware datetime format
Ask for confirmation when selecting 'New Game'
Videoplayer: only pause previous sounds if there is an audio stream
Add Credits button to main menu (plays mw_credits.bik)
Ask for confirmation to exit OpenMW
Add option to disable SDL's "minimize on focus loss" in fullscreen
Savegame dialog: Hide main menu after successful load
Update weapon icon in HUD when save is loaded.