Trying to install pyside for python3
ls to ensure directories exist
using correct path to dist-packages in py3
Ensuring pyside is installed correctly
Using python 3.2 on travis

We have prebuilt binaries in Ubuntu 12 for 2.7 and 3.2 only; avoid
testing other python versions because that would imply a full PySide
or PyQt4 build, which would put large train on travis' servers
pyqt uses different names in ppa for python2 and 3
Adding more tox environments for local testing