Support symlinked sites directories
Merge pull request #34 from jamsilver/master

Allow sites directories to be symlinks
Fixes #32: Allow sites and databases folder to be configurable.
Change packages over to use Percona.
Fix percona client attempting install before repo.
Fix the pressed file.
Fixes #36: Use Percona instead of MySQL.
Fixes #37: Make the amount of memory configurable.
Fix the dependencies of Percona client.
Rename solr.pp to parrot.pp
Issue #42: Add HTTPS support.
Name the Parrot VM.
Change the syntax of the GUI option.
Issue #45: using an invalid key server.
Fixed a few minor elements of apache and mysql configuration