Adding the test modules for 'formats.py' and 'schema.py'.
'roledb.py' and 'keydb.py' updated following unit testing and review.  'test_roledb.py' and 'test_keydb.py' added.
Comment added to both 'keydb.py' and 'roledb.py'.
Adding the refactored pushtools modules.
Adding documentation (to be updated after the refactoring effort) and TUF-related papers.
Adding a README file (to be updated after the refactoring effort) and a list of authors.
Adding a license and removing the outdated MANIFEST file.
LICENSE added.
Fixed comments/stylistic issues in test_download.py, test_mirrors.py, download.py, mirrors.py and simple_server.
Merge branch 'master' of github.com:akonst/tuf
quickstart.py updated with additional usage comments.
Merge branch 'master' of https://github.com/akonst/tuf
Minor edit to README.txt
Added a basic TUF client.  A custom example client script also provided.
Removing example_client.py from the examples directory.
Added evpy to packages and other updates to setup.py.
Update .gitignore
Removed .pyc files from the simplejson directory.
Merge branch 'master' of https://github.com/akonst/tuf
test_util.py and util.py need to be reviewed.