Update metadata

Fix PE compatibility, update issues URL, and fix requirements to match
output from PMT.
Merge pull request #920 from mhaskel/metadata_fixes

Update metadata
Relying on missing fact

Ubuntu 10.04 with PE3.3 is missing the operatingsystemmajrelease fact,
so check either operatingsystemmajrelease or operatingsystemrelease.
Merge pull request #921 from mhaskel/pe33_ubuntu1004_fix

Relying on missing fact