Merge with pyramid-cubicweb
The following tasks have been done:
- merge packaging files
- merge documentation
- move pyramid_cubicweb package at cubicweb/pyramid and update imports
accordingly
- rename tests directory into test
- move pyramid-cubicweb README.rst into README.pyramid.rst until better idea
- add a test dependency on unreleased cubicweb-pyramid to have both py27 and
py34 tests pass
Closes #14023058.