keys.c: K_BACKSPACE (127) is a non printable character.


git-svn-id: svn://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@1021 af15c1b1-3010-417e-b628-4374ebc0bcbd
input: remove the USE_SDL2 check from keys.c.

Instead, make the backend responsible for calling either or both
of Key_Event and Char_Event under the appropriate circumstances.
For SDL2 this means no change, for SDL1 this means call both when
a key is pressed, but call only Key_Event when a key is released.



git-svn-id: svn://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@1022 af15c1b1-3010-417e-b628-4374ebc0bcbd
in_sdl: SDL1: don't send '`' or '~' to the console.


git-svn-id: svn://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@1023 af15c1b1-3010-417e-b628-4374ebc0bcbd