Python Driver v1.12.0-1
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Python driver 1.12.0-2
Merge commit '53e23c7' into HEAD

Conflicts:
	drivers/python/setup.py
Merge branch 'v1.12.x' into next

Conflicts:
	drivers/python/rethinkdb/net.py
Merge branch 'next' into sam_2353
Merge branch 'sam_2353' into sam_2353_ii