Fixes #6884 - Installation media without $minor generate broken $version

$version is generated with the major version and a dot, producing paths
like foo.bar/x64/7. which don't exist. For CentOS at least we want to generate
a path without the dot. The default values for these media have been changed too....

Fixes #8851 - support seed files of plugin with dash in name

(cherry picked from commit 01652bbe92a9824a82fcfd6a4f98d61478e52b52)

fixes #8366 - add parameter type to unique index

(cherry picked from commit d5f92b39de44658f2c73ff87139f7152e6e41208)

Fixes #8418 - Add 'facts' feature to features

(cherry picked from commit a2523ccf030169eaf170c329e2f68193777ab2cb)

Refs #969 - Foreman-side changes for serving templates from the proxy

(cherry picked from commit 2094e4e8b049e6cae32326c33a7ba73cc4047b9f)

fixes #7586, #7734, #7172 - user preferences for receiving mail notifications

Adds a framework for user-selectable mail notifications. The work is
still done in ActionMailer classes and launch by rake in cron, however a
wrapper called MailNotification is used to provide RBAC and make the...

Fixes #3260- Allows puppet to manage value of smart class parameter that can be overrided

(cherry picked from commit 8e53b7c915ecab576e5950b20e75552ec6a02edb)

fixes #7975 - Subnet names should be unique

(cherry picked from commit 4af1e2bacaa43c7dc3bb535cb087a6584b87719e)

Fixes #3309 - Support deep merging of hash and array structures in smart class parameters

fixes #4439 - ensure user logins are handled case insensitively