Fixed some com_jk2 conditions which were wrong.
Fixed #189: Updated jpeg-6 to jpeg-8c in SP.
Possibly fixed #212: invalid jpg image should no longer cause the game to
error. Instead an error message is shown in the console.
Update SP project files for new jpeg-8c library
Merge remote-tracking branch 'upstream/master'
Changed the non-standard zero-sized array to the more conventional
one-sized array in shaderText_t.
Fixed #250. @eezstreet, you need to be careful with copy/pasting :P this
is the third problem that's been caused from the com_jk2 optimization!
Fixed Linux/Mac compilation (#252).