Add bindcallargs to dit.utils.
Add some context managers.
Add test to verify that named_tempfile() overrides the `delete` parameter.
Make sure python3 syntax tests are excluded from nose in 2.X
Missing import.
Fix .travis.yml if statement.
Provide getcallargs from inspect.py (in 2.7) for 2.6.
Make behavior of bindcallargs match Signature.bind in 3.3+
Don't use dict literals, since 2.6 doesn't support it.
Merge pull request #43 from chebee7i/utils

Add some context managers to dit.utils