fixed keyring for windows

There is a unicode issue with Windows 8 at a minimum.  The .encode('ascii') fixed the problem for windows and I tested it on OSX and there was no problem.
s/Par ameter/Parameter/
Made supernova-keyring return non-zero
Made supernova-keyring return non-zero
Merge branch 'master' of github.com:roaet/supernova
Merge pull request #15 from rackerscott/master

unicode keyring problem on windows
Merge pull request #17 from gregswift/master

Added a simple spec file for building RPM
Merge pull request #18 from sivel/remove-space

s/Par ameter/Parameter/
Merge pull request #19 from roaet/return_status_no_key

Return status no key
Exit with novaclient's exit code.
Merge pull request #20 from hughsaunders/pass_novaclient_exit_code

Exit with novaclient's exit code.
rackerhacker -> major
Fixed the version range for keyring
Merge pull request #23 from roaet/fix_version_thing

Fixed the version range for keyring
Added support to get python-novaclient object authd
Pylint/Pep8 fixes
Merge pull request #26 from naterh/master

Add support to return python-novaclient object
fix(README): add pip install

Let people quickly install from pip. On OSX I think the deps are messed up since keyring needs to be installed first.
Merge pull request #27 from philips/master

fix(README): add pip install
Revert "fix(README): add pip install"

This reverts commit e8b4edf77ab1852ef82091ef4b86227ce765aca5.