fixes #8484 - make SmartProxyAuth concern more useful to plugins

fixes #7652 - Implements CoreOS OS support

Fixes #8796 - Fix to_gb size calculation and constentize

fixes #8049 - Add timezone to user

fixes #8638 - ensure that a redirect to hosts index after host destroy

fixes #8739 - use global setting when hostgroup root_pass is blank

A blank (not nil) root_pass on hostgroups was preventing correct inheritance
from settings in both hosts and nested hostgroups.

root_pass was also being copied from parents/settings to hostgroups when they...

fixes #8685 - include netmask in ENC output

fixes #8477 - usability improvements to template locking/defaults

fixes #8591 - explicitly set where to subnets.id

Fixes #8551 - use most specific matcher for inherited hostgroups

Host recieves correct smart_class_parameter value when multiple overrides for
inherited host groups exist for parameter.