Merge branch 'release/ANF20130221-1'
Basic rspec for main class
Add spec for disable
Fix bug with detection of selinux permissive mode

Facter facts are presented as strings, so true and false are 'true' and
'false'. Use str2bool from puppetlabs-stdlib to convert it to a boolean.
Bump version to ANF20130222-1
Merge branch 'hotfix/selinuxpermissive' into develop