#48 Support for static lib generation + linking against static SFML (dynamic FFmpeg)
Merge remote-tracking branch 'origin/master' into 48_StaticLib

Conflicts:
	CMakeLists.txt
	include/sfeMovie/Visibility.hpp
#48 Updated FindSFML script from SFML git head to avoid cache issues
#48 Clarify the situation with SFML expected to be statically linked too, disallow static build on non-Windows
#48 Fix build with missing SFML include dir
#48 Fix many compilation warnings
Merge pull request #72 from Yalir/48_StaticLib

#48 static lib