-Codechange: Simplify frame timing, possibly improving behaviour in case frame render time becomes too large.


git-svn-id: https://freerct.googlecode.com/svn/trunk@1059 d3bf82d2-0c16-e458-5408-27be57bd1276
-Fix: SDL2_ttf cmake FOUND variable also changed.

git-svn-id: https://freerct.googlecode.com/svn/trunk@1060 d3bf82d2-0c16-e458-5408-27be57bd1276