Updated manifests/init.pp

 - renamed variable $jre to $jre_path
 - use ensure_resource to install prerequisite packages
 - fixed failure installing version 2
switched to http protocol when downloading dependency repos
unnecessary file
Update manifests/params.pp

 - Use $operatingsystem and $lsbdistcodename variables so as to make
   spec tests simpler (less declaring of facts)
more thorough tests for aircontrol module