Add path attribute to exec resource

Puppet requires fully qualified paths in commands or a path attribute to be made explicit.
Fix typo in fail notice
Added refreshonly attribute to restorecon exec
Add path attribute to exec resources

Puppet requires fully qualified paths in commands or a path attribute to be made explicit.
Add path attribute to exec resources

Puppet requires fully qualified paths in commands or a path attribute to be made explicit.
Merge pull request #25 from earsdown/master

Add path attribute to exec resources & fcontext refreshonly support