fix reading garbage

compiler takes sizeof(float*) into account already when doing pointer
indexing (unless someone meant to read random data from the stack)
Merge pull request #40 from learn-more/master

fix reading random data from the stack
Merge pull request #44 from learn-more/master

release mouse on alt+tab + cmake for win build
[0.0-25] tidied up the last few commits; bumped the version number (please, update the version number when you touch the engine!)