Add regression tests for "where id = 0" predicate.
Sqlalchemy: Fetch all columns if no columns are specified. (Fix #42)
Fix warning with python3
Add missing safeguard for 9.2
Allows unknown types to be used in quals.
Added support for savepoints.
Call commit/rollback even for unmodified foreign tables.
Fixed typo in the testfdw class.
Updated the Python 3.3 tests to reflect the new transaction hooks.
Updated the Python 2.7 tests to reflect the new transaction hooks.
The sub_commit/sub_rollback routines should be called only at the current depth.
Added tests for the savepoints hooks.
Some test cleanup.
Pgindent
Fix test with savepoints
Fix tests from master.
Pgindent
Merge branch 'master' into explicit_locks

Conflicts:
	python/multicorn/testfdw.py
	src/multicorn.c
	src/multicorn.h
	src/python.c
	test-2.7/expected/multicorn_regression_test.out
	test-2.7/expected/multicorn_savepoints_test.out
	test-2.7/expected/multicorn_write_test.out
	test-3.3/expected/multicorn_regression_test.out
	test-3.3/expected/multicorn_savepoints_test.out
	test-3.3/expected/multicorn_write_test.out
	test-3.3/sql/multicorn_savepoints_test.sql