Some fixes for 13.3.0 percona template

Hi Derek,

Here is the first batch of commits.  I spoke to Filip regarding the dependencies of rsyslog which ships with 13.3.0 which has dependencies on the mysql client and postgresql clients.  If you uninstall the mysql client it uninstalls rsyslog in the process.

I will push the mysql_install_db bits in a few.  The percona toolkit and xtrabackup and quickbackups is not in the 2013Q3 pkgsrc repository so some work may need to still be done there to get that going on 13.3.0.