Changing module name to match the standard

Every other puppetlabs openstack module uses the naming scheme "puppetlabs-X", and other modules expect this one to use this scheme as well:

Warning: Missing dependency 'puppetlabs-cinder':
  'puppetlabs-nova' (v1.0.1) requires 'puppetlabs-cinder' (>= 1.0.1)
  'puppetlabs-openstack' (v1.0.3) requires 'puppetlabs-cinder' (>= 1.0.1)
Restrict permissions on cinder configuration

Prior to this commit, the puppetlabs-cinder module applied the mode
0644 to the File[$::cinder::params::cinder_conf] resource which
were too permissive. This commit explicitly sets the mode to 0600.
Merge pull request #24 from puppetlabs/bug/cider_config_permissions

Restrict permissions on cinder configuration
Merge pull request #21 from comptonqc/patch-1

Changing module name to match the standard