fixes #12436 - as a user I want to deploy vSphere vms on a storage pool

fixes #13494 - change puppet proxy for several hosts at once

This commit adds the possibility to select multiple
hosts and change the puppet proxy for them.

fixes #13311 - improve English and link full sentence to docs

Continuation of d7444a7. Also removed the link to the dashboard from
the hosts index, as it was removed in 313979b.

Fixes #13639 - add host permissions to host show api

templates - sync from community-templates

Fixes #12909 - Keep 'reset zoom' buttom on the left

fixes #13440 - rename Host#model_name to #hardware_model_name

Rails 4.2 defines a model_name instance method which is used in routing
and called from link_to. Rename our model_name methods to
hardware_model_name to prevent this overlapping and causing link_to...

Fixes #13386 - Adds taxonomy parameters objects

Fixes #13378 - Ensure taxonomy name length validation is called once

Fixes #13428 - Temporarily thin flot_pie width to make it look like Patternfly

Tiny change, but until we move to use the donut charts in #13424, we can
make flot_pie look more similar to them & match the general Patternfly
recommendations.
Notice the difference http://imgur.com/a/3cjhL