Use dynamic binding for API results.

This is far weaker than I'd like to see, but it frees the path up for Python
3 support finally.  Refs #34.
Added an explanation for the current object modelling.
[Tr] Drop unnecessary Unicode literals.
Python 3 compatible utils.pager().
Revert "Enable pypy in travis runs."

This reverts commit 07ecce0a540fbca2bab2cc069facc9443cf8c379.
Enable Python 3.2 and 3.3 in travis config.
Merge branch 'feat/lax_binding'

Closes #41.

* feat/lax_binding:
  Added an explanation for the current object modelling.
  Use dynamic binding for API results.
Merge branch 'feat/python3'

Closes #42 and #34.

* feat/python3:
  Enable Python 3.2 and 3.3 in travis config.
  Python 3 compatible utils.pager().
  [Tr] Drop unnecessary Unicode literals.

Conflicts:
	.travis.yml