- use DummyRNA_NULL_items to replace empty enums. - replace calloc with malloc in copy_dverts since its copied over after. - add wmGesture->userdata, so operators that use gestures have somewhere to store their own data (not used yet).
- use DummyRNA_NULL_items to replace empty enums. - replace calloc with malloc in copy_dverts since its copied over after. - add wmGesture->userdata, so operators that use gestures have somewhere to store their own data (not used yet).