Graphun now works on MoRE and BB10.
However, NativeUI is disabled.
BB10 now supports example HelloNativeUI.
Linux CriticalSection: Fixed a bug, added error checking.
BB10: Screen initialization is now delayed until user calls a drawing function.
This allows NativeUI and plain-graphics programs to use the same runtime.
Todo: disable screen, if active, in maWidgetScreenShow().
BB10 NativeUI: Implemented many properties.
iOS: Disabled NUI property "spacing".
Examples Graphun & HelloNativeUI: Minor fixes.
rules: Added arg_handler, allowing special handling of command-line arguments.