updated chef-install to allow the version to be configurable
Merge pull request #32 from cloudnull/heartbleed_update

updated chef-install to allow the version to be configurable
Change file check order

The `/etc/lsb-release` file exists on CentOS 6.5, too. Switching the order of this check allows for both Ubuntu and CentOS's Chef Server installation to succeed since `/etc/system-release-cpe` is exclusive to the latter.
Merge pull request #33 from jpmontez/patch-1

Change file check order
added RabbitMQ URI override