updated lots of things
Fix bug with invert matrix (was copying one float instead of all floats).
Fix another instance of sizeof ptr instead of array.
Fix bug with mat4x4_translate_in_place introduced in 34cd9df850faf0bf6b9182b3500406351ad68ae0
LICENCE file adjusted
Merge branch 'dev' into learnopengles/dev
merged learnopengles and aransentin contributions
Merge branch 'aransentin/master' into dev
Merge branch 'learnopengles/dev' into dev