general pep8 fixes 

I've begin fixing up pep8 style errors and updating the test test_coding_standards to reflect the fixes
I'm using the latest pep8 code from git.

```py
# a b c d e f  http://labix.org/python-dateutil#head-b95ce2094d189a89f80f5ae52a05b4ab7b41af47
```
pep8 outputs

/tmp/tmp.py:1:80: E501 line too long (93 > 79 characters)