first pass at centos support adds depends on yum & bumps version
use same indent as original
Update README.md

Update README to reflect CentOS support
Update README.md

Update recipe list to include yum, update existing links from deprecated opscode/cookbooks to new opscode-cookbooks org
Remove yum and apt dependencies and increment version number.
Merge pull request #2 from tracelytics/centos-support

Centos support