import https://github.com/onehealth-cookbooks/sysctl/tree/a07593335554f6e12f7f03c5e1d35aa74ad985e6
use attributes for sysctl, as the resource/prodiver method is not persistent
fix missing variable comparison
fix mysql attribute error (https://github.com/opscode-cookbooks/mysql/pull/93)
Merge pull request #176 from nhannguyen/mysql

fix mysql attribute error (https://github.com/opscode-cookbooks/mysql/pull/93)
only add repos when needed
add max_pred_locks_per_transaction for redhat
Merge pull request #177 from phunehehe/postgresql-repo

only add repos when needed
Merge pull request #174 from phunehehe/postgresql

add max_pred_locks_per_transaction for redhat
Merge pull request #173 from phunehehe/sysctl

Update sysctl from upstream and replay our changes
Merge pull request #175 from phunehehe/roundcube

fix missing variable comparison