RHEL/CentOS support is needed

[noelmcloughlin]

The os_family = redhat support seems to be missing - might be related to #43 - but I think this formula only implements Debian family.

[ERROR   ] Command '[u'yum', u'-y', u'install', u'nodejs']' failed with return code: 1
[ERROR   ] stdout: Loaded plugins: fastestmirror, ovl
Loading mirror speeds from cached hostfile
 * base: mirror.us.oneandone.net
 * extras: repos-va.psychz.net
 * updates: repos-va.psychz.net
No package nodejs available.
Error: Nothing to do
[ERROR   ] retcode: 1
[ERROR   ] Error occurred installing package(s). Additional info follows:
errors:
    - Loaded plugins: fastestmirror, ovl
      Loading mirror speeds from cached hostfile
       * base: mirror.us.oneandone.net
       * extras: repos-va.psychz.net
       * updates: repos-va.psychz.net
      No package nodejs available.
      Error: Nothing to do
--------------------------------------------------
state_apply_response:
local:
----------
          ID: nodejs
    Function: pkg.installed
      Result: False
     Comment: Error occurred installing package(s). Additional info follows:

              errors:
                  - Loaded plugins: fastestmirror, ovl
                    Loading mirror speeds from cached hostfile
                     * base: mirror.us.oneandone.net
                     * extras: repos-va.psychz.net
                     * updates: repos-va.psychz.net
                    No package nodejs available.
                    Error: Nothing to do
     Started: 22:55:44.616122
    Duration: 5405.466 ms
     Changes:   
Summary for local
------------
Succeeded: 0
Failed:    1

[saltstack-formulas-travis]

:tada: This issue has been resolved in version 0.14.0 :tada:

The release is available on GitHub release

Your semantic-release bot :package::rocket: