Merge metadata updates from upstream r602
Generated Python files for metadata
Update unit test to match current metadata
Merge branch 'dev' into python3

Conflicts:
	python/phonenumbers/data/region_AR.py
	python/phonenumbers/data/region_BR.py
	python/phonenumbers/data/region_BY.py
	python/phonenumbers/data/region_CM.py
	python/phonenumbers/data/region_CN.py
	python/phonenumbers/data/region_GE.py
	python/phonenumbers/data/region_LT.py
	python/phonenumbers/data/region_MU.py
	python/phonenumbers/data/region_SO.py