Fixes #11467 - Textareas in form may be resized only vertically
Fixes #11461 - Remove 'global scope' column in host/hostgroup parameters form
Fixes #8785 - HTML syntax fixes - add thead/tbody, fix formatting
Fixes #4596 - Change parent of host group via AJAX
Reparenting host groups requires submitting the form to see the changesnowadays, this fix makes the host group model inherit all propertiesfrom the parent and show them in real time.