Fix package_ensure value for cinder::volume

true is not a valid value for the package type's ensure parameter.
Swap it for the legal value present.

At some point this could become parameterized, but this patch will be
effective for now.
Merge pull request #103 from cmurphy/fix_cinder_package

Fix package_ensure value for cinder::volume
Remove dependency on puppet-tempest

Puppet-tempest does not install correctly on Puppet Enterprise >=3.3
with the puppet module tool. This commit removes the dependency on
puppet-tempest from the Modulefile and removes the default inclusion of
tempest on the allinone node.

Users wishing to use tempest can still include the tempest role on
their node. The Puppetfile will continue to depend on puppet-tempest.
Merge pull request #104 from cmurphy/tempest

Remove dependency on puppet-tempest
Release 4.2.0

Bug fixes and allinone/multinode setup changes and additions