Bump up the timeout for tcpdump in the collectd bats test and fix the comment accordingly.
Add version check for collectd.
Add CentOS 7.0 and update stuff around it.
Get collectd 4 restriction working on Ubuntu 14.04.
Get collectd 4 restrictions working on CentOS 7.
Fix up .kitchen.yml and add comments to the collectd recipe.
Merge pull request #22 from rightscale-cookbooks/st_14_11_acu173881_restrict_to_collectd_4

St 14 11 acu173881 restrict to collectd 4