Update to last stable release script, v2014.09.09

* Distro Support Fixes:
  * Updated the URL for EPEL 7
  * PIP based installations on Ubuntu 10.04 need setuptools installed
  * Arch stopped providing the version information on `/etc/arch-release`
  * Complete `salt-api` services checking skips. #450
Update to latest bootstrap stable release v2014.09.24

* Fixed salt tag version matching to also accept, for example, v2014.7. saltstack/salt-bootstrap#464
* Fix the EPEL 7 URL since epel-release is now 7.2
Merge pull request #16097 from s0undt3ch/hotfix/bootstrap-script

[2014.7] Update to latest bootstrap stable release v2014.09.24