Code cleanup
More code cleanup.

* Removed unnecessary re-definitions of ``__init__()`` in ``Area``
  subclasses.
* Moved "options" generation into ``Area.get_options()`` and added
  options support to ``Item`` methods.
* More PEP8-related fixes.
Requested changes.
Using sphinx-style docstrings
Missed a couple
Added changes from my work branch
Merge branch 'PEP8'

Conflicts:
	pypodio2/areas.py