Fixed bug 2231 - Move src/input/evdev into src/core/linux

Ryan C. Gordon

To keep the directory layout sane, we should probably move this one piece of source to the linux catch-all directory, instead of making it look like this is part of an SDL "input" subsystem.

--HG--
rename : src/input/evdev/SDL_evdev.c => src/core/linux/SDL_evdev.c
rename : src/input/evdev/SDL_evdev.h => src/core/linux/SDL_evdev.h
Fixed up configure so it doesn't reference input/evdev anymore
Fixed bug 2232 - Version Mismatch in VS2013 Solution File

Joe LeVeque

Line 3 of SDL_VS2013.sln file reads "# Visual Studio 2012" instead of "# Visual Studio 2013" which causes Windows to associate the file with Visual Studio 2012, if installed, instead of Visual Studio 2013.