Fixes #8786 - Show override button after removing overridden parameter

After a parameter is overridden in a host or host group, if one wants to
revert the decision and return to the inherited parameter, it was
necessary to reload the page after clicking on remove. This commit...

Fixes #8661 - Refactor compute resource vm partials

Removed pointless try methods, renaming the new variable to new_host
to avoid possible name confusion.

fixes #7652 - Implements CoreOS OS support

Fixes #8804 - Align the dashboard to bootstrap columns

refs #8428 - fix typo in audit's belongs_to user

Fixes #8796 - Fix to_gb size calculation and constentize

fixes #6540, #8335 - Add error to vmware when no datacenter, save password when testing connection

fixes #8049 - Add timezone to user

fixes #8442 - add eager loading of users on audit show page for history tab

Fixes #8785 - HTML syntax fixes - add thead/tbody, fix formatting