sys_sdl_win.c: Call SetProcessDPIAware if available (Vista and above) to opt out of the OS scaling our window on a high-dpi display.

SDL (both 1.x and 2.x) is buggy and can't deal with scaled windows.
But we'd probably want to call this anyway beause it give us full-resolution windows.

git-svn-id: svn+ssh://svn.code.sf.net/p/quakespasm/code/trunk@1045 af15c1b1-3010-417e-b628-4374ebc0bcbd
keys.c: Key_ConsoleBindable: add a better check for "general bindability".


git-svn-id: svn+ssh://svn.code.sf.net/p/quakespasm/code/trunk@1046 af15c1b1-3010-417e-b628-4374ebc0bcbd
Minor cleanups.

in_keys.c: Key_ConsoleBindable: remove redundant check, this is now handled by Key_KeynumToString/Key_StringToKeynum.
in_sdl.c: IN_SendKeyEvents: use a single method for checking whether we have a keydown or keyup event.


git-svn-id: svn+ssh://svn.code.sf.net/p/quakespasm/code/trunk@1047 af15c1b1-3010-417e-b628-4374ebc0bcbd
revert r1045 (SetProcessDPIAware).. while it fixed broken fullscreen on one configuration (sdl2/windows 8), it broke another that worked (sdl2/windows 8.1).

git-svn-id: svn+ssh://svn.code.sf.net/p/quakespasm/code/trunk@1048 af15c1b1-3010-417e-b628-4374ebc0bcbd
add a note about high-dpi displays on Windows to the readme.

git-svn-id: svn+ssh://svn.code.sf.net/p/quakespasm/code/trunk@1049 af15c1b1-3010-417e-b628-4374ebc0bcbd
gl_vidsdl.c: Correct some swap interval related messages.


git-svn-id: svn+ssh://svn.code.sf.net/p/quakespasm/code/trunk@1050 af15c1b1-3010-417e-b628-4374ebc0bcbd
cleanup USE_GAMMA_RAMPS and USE_SDL2 stuff

git-svn-id: svn+ssh://svn.code.sf.net/p/quakespasm/code/trunk@1051 af15c1b1-3010-417e-b628-4374ebc0bcbd
exec default.cfg and config.cfg upon in-game gamedir changes.

git-svn-id: svn+ssh://svn.code.sf.net/p/quakespasm/code/trunk@1052 af15c1b1-3010-417e-b628-4374ebc0bcbd
add code for USE_GAMMA_RAMPS case for SDL2 builds. (still off by default.)

git-svn-id: svn+ssh://svn.code.sf.net/p/quakespasm/code/trunk@1053 af15c1b1-3010-417e-b628-4374ebc0bcbd
rename gnu.txt to LICENSE.txt

git-svn-id: svn+ssh://svn.code.sf.net/p/quakespasm/code/trunk@1054 af15c1b1-3010-417e-b628-4374ebc0bcbd