Travis: enable py3.5, disable pypy

[eliasdorneles]

Hey folks!
So it turns out lxml never really worked in pypy, so we should disable it from tests -- see issue #35

[codecov-io]

Current coverage is 96.90%

Merging #37 into master will decrease coverage by -3.10% as of 019d991

Powered by Codecov. Updated on successful CI builds.

[dangra]

pypy 5.0.1 seems to work:

$ tox -e pypy
GLOB sdist-make: /Users/daniel/src/parsel/setup.py
pypy create: /Users/daniel/src/parsel/.tox/pypy
pypy installdeps: -r/Users/daniel/src/parsel/tests/requirements.txt, .
pypy inst: /Users/daniel/src/parsel/.tox/dist/parsel-1.0.1.zip
pypy installed: You are using pip version 8.0.2, however version 8.1.1 is available.,You should consider upgrading via the 'pip install --upgrade pip' command.,cffi==1.5.2,coverage==4.0.3,cssselect==0.9.1,greenlet==0.4.9,lxml==3.6.0,parsel==1.0.1,py==1.4.31,pytest==2.9.1,pytest-cov==2.2.1,readline==6.2.4.1,six==1.10.0,w3lib==1.13.0,wheel==0.26.0
pypy runtests: PYTHONHASHSEED='3193435006'
pypy runtests: commands[0] | py.test --cov=parsel --cov-report= parsel tests
======================================== test session starts ========================================
platform darwin -- Python 2.7.10[pypy-5.0.1-final], pytest-2.9.1, py-1.4.31, pluggy-0.3.1
rootdir: /Users/daniel/src/parsel, inifile: pytest.ini
plugins: cov-2.2.1
collected 53 items

parsel/utils.py ..
tests/test_selector.py ..................s......................
tests/test_selector_csstranslator.py ..........

=============================== 52 passed, 1 skipped in 1.25 seconds ================================
______________________________________________ summary ______________________________________________
  pypy: commands succeeded
  congratulations :)

[dangra]

I guess we can wait for travis-ci to update pypy on its base image

[redapple]

One can install newer PyPy #44 (trick from travis-ci/travis-ci#5027 (comment))