static sdl2 compilation option for Unixes that are not Apple
should fix travis building problems with sdl2
travis cleanup, remove CG and OIS
use static sdl2
Added missing click sounds to dialogue
Type of weather changed from string to enum.
Simpler statistical calculation of next weather; minus before parens.
WeatherResult added as member variable.
Removal of duplicit exterior checking and unneded string copiing.
Merge branch 'master' of https://github.com/zinnschlag/openmw into weather
Static for nextWeather()
Correction of sigsegv.
added my real name where credited as podcaster
Revert "Type of weather changed from string to enum."

This reverts commit 04d90b4c47e140cec53750d523378d2cf9938387.

Conflicts:
	apps/openmw/mwworld/weather.cpp
	apps/openmw/mwworld/weather.hpp
killed a stray srand
Fading for Exterior->Interior cell transitions
Merge remote-tracking branch 'vorenon/fixes'
fix custom resolution maximum
Merge branch 'master' of https://github.com/zinnschlag/openmw
minor cleanup