Make declaration of specialized signatures less repetitive
Merge branch 'master' of github.com:numba/numba into easier_signatures

Conflicts:
	numba/types.py
Remove comment
Merge branch 'master' of github.com:numba/numba into easier_signatures
Merge pull request #547 from pitrou/easier_signatures

Make declaration of specialized signatures less repetitive
Merge branch 'master' of github.com:numba/numba into float_floordiv

Conflicts:
	numba/typing/builtins.py