Unify pair should be symmetric
Add tests for unify_types
Relax nopython restriction for gufunc
Add test for gufunc object mode
Test object modes and forceobj in ufunc builders
Add error handling for gufunc object mode
Fix invalid decref
Added proposed unit test for issue #599.
Merge branch 'master' of github.com:numba/numba
Merge Siu's stuff in PR #600.
Fix typo in subprocess call.
Fixed issue raised by unit test from PR #600 (with thanks to aterrel).
Fix fix for #600 on Python 3.x (type comparison works differently in 3.x).
Fix Python 3.2 compatibility.
Fix fix for the #600 fix.
Modified comparison function in BaseContext.unify_types() to handle objects that don't have the bitwidth attribute.
Replaced comparison-based sort with key based sort in BaseContext.unify_types() (fixes 2/3 compatibility issues).
Clean up
- make call wrapper initializes the return value to zero so that null must be returned when an error occurs in object mode function
Fix utils.total_ordering() on 2.x.  This should fix the sporadic failures in test_types.
Forgot to add this file