python rql tests now shard tables
hide sharding failures in python tests
Merge branch 'ql-refactor' of github.com:rethinkdb/rethinkdb into ql-refactor
makes running the tests with shards optional
reenable other tests
fix shard points for python tests
Merge branch 'ql-refactor' of github.com:rethinkdb/rethinkdb into ql-refactor

Conflicts:
	test/rql_test/Makefile