add version_info and icon sections in "export to windows platform".
add version_info and icon to godot exe file (editor & template exe).
fix an problem in image class.
change all default icons to android export icon (a little more rounded).
create an python script for convert file to cpp byte array for use in
'splash.h'.
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Build System:
-Big clean up of SCons, changed how builds are done to a much cleaner method (check the Github Wiki for instructions).
-Deactivated BlackBerry10 (sorry), if no mantainer found (or BlackBerry does not send us a Passort ;), platform will be removed as we have no longer devices to test.
Engine:
-Removed deprecated object and scene format (was in there just for compatibility, not in use since a long time).
-Added ability to open scenes even if a node type was removed (will try to guess the closest type).
-Removed deprecated node types.
