Update to latest stable bootstrap script v2014.10.14

* Fixed a regex issue with matching Salt's tags. Match v2014.7 but not 2014.7 as a valid tag
* Distro Support Added:
  * Added Linux Mint 17 support(Thanks Skyler Berg)
* Disrto Suuport Fixed:
  * Init pacman keys if not done so previously
Merge pull request #16615 from s0undt3ch/hotfix/bootstrap-script

[2014.7] Update to latest stable bootstrap script v2014.10.14