Allow rspec-beaker to update.

Previously the dependencies for rspec-system were holding back rspec-beaker and specinfra.
I believe this Rake problem has been fixed upstream.
Improve this so it works on Ubuntu 14.04.
Merge pull request #507 from apenney/fix-1404

Improve this so it works on Ubuntu 14.04.
Fix backup test, install bzip2.
Try to add some checks so the test doesn't do an rm -rf /
MariaDB still uses my.cnf as the main config file.
Fix to install ruby-mysql from gem.
Change package/service for MariaDB.
Allow the tests to run on RHEL7.
Merge pull request #511 from mhaskel/rhel7-fixes

Rhel7 fixes
Package rename in Ubuntu 14.04.
Merge pull request #512 from mhaskel/ubuntu-1404

Package rename in Ubuntu 14.04.
Change the package name in the manifest, too!
Merge pull request #513 from mhaskel/ubuntu-1404-again

Change the package name in the manifest, too!
Fix hiera.yaml creation on PE.
Missed a couple of tests to gate off for unsupported platforms.
Adds "Release Notes/Known Bugs" to Changelog, updates file format to markdown, standardizes the format of previous entries

Per a request to have initial release notes that specifically listed known issues for this PE 3.2 release, and barred by time constraints from automating a pull from open issues in JIRA, this commit adds a Release Note and Known Bug section to the Changelog for the imminent 3.2 release. As it will display on the Forge, updates file type to markdown and standardizes previous entries. Adds template for release notes to be filled in later.
Prepare metadata for supported modules.
Supported Release 2.2.2

Summary
=======
This is a supported release. Mostly comprised of enhanced testing, plus
a
bugfix for Suse.

Bugfixes
--------
- PHP bindings on Suse
- Test fixes

Known Bugs
----------
* No known bugs