-Support for changing fonts

-Detect when free() might crash the project and throw error
-fixed 2D Bounce in physics (3d still broken)
-renamed “on_top” property to “behind_parent”, which makes more sense, old on_top remains there for compatibility but is invisible.
-large amount of fixes

platform/isim/detect.py

@@ -38,7 +38,6 @@ def get_flags():
 		('tools', 'yes'),
 		('nedmalloc', 'no'),
 		('webp', 'yes'),
-		('module_FacebookScorer_ios_enabled', 'no'),
 	]