rename "Tabloid" requirement to "tabloid" to avoid search requests to PyPi
tox.ini: use pip instead of easy_install
.travis.yml: travis now supports pypy3
fixed flake8 warnings
fixed coverage in tox
.travis.yml: use different envs for pylint/flake8/tests
Merge pull request #163 from nikicat/powny-ng

fixed flake8 warnings