coveralls integration

Conflicts:
	.travis.yml
coveralls badge

Conflicts:
	README.md
remove python2.6
Merge pull request #7 from tmmurali/continuous_integration

Continuous integration
bring code up to pep8 compliance
check for pep8 in travis
Merge pull request #8 from tmmurali/pep8

Pep8
Update .travis.yml

python 3.4 isn't on travis-ci yet
Update README.md

add info about pep8 checking
pep8