Fix ignored PEP8_IGNORE option.
Read PEP8 ignore from config
Merge remote-tracking branch 'greut/fix-pep8-ignore'

Conflicts:
	invenio_kwalitee/kwalitee.py
Comment on line with first problem
Using pyHamcrest for testing (Python 2.6 support)

* Enabling Travis testing for 2.6, 2.7, 3.3
* Adding the corresponding classifiers in setup.py
Merge pull request #12 from greut/python2.6

Using pyHamcrest for testing (Python 2.6 support)