run sphinx-quickstart
rename sphinxdocs & ignore
add some stub docs
document GnuPG class
some more doc stubs
document EmailFetcher
document EmailSender
document check_bot_keypair
document main
document OpenPGPMessage properties
document OpenPGPMessage __init__
tweak sphinx defaults
document OpenPGPMessage private methods
pretty up index page
Merge pull request #22 from wearpants/docstrings

Add Sphinx documentation
makes slow tests optional
Test.py defaults to run only test which are relatively speedy.
Adds "--slow" argument to test.py to run all tests, including slow ones.