Docstringed api.py, config.py, item.py, and search.py.
Also tidied up some spaced and tabs in item.py.
Tidied up imports, end-of-line spaces.
Now we retry once, instead of just failing, when the connection is refused.
added max_requests to api.py:get_item()
Forgot to run tox to check py26 compatability. Works on py26 now.
Added to docstring.
Merge pull request #58 from fibn144/retry-requests

Retry requests
Merge remote-tracking branch 'upstream/master' into docs-testing

Conflicts:
	internetarchive/api.py
(Also added info about max_retries to get_item's docstring)