Fixes #6608 - expose disk usage info through available_storage_domains API
Fixes #6476 - oVirt VM association with multiple interfaces
Fixes #6756 - exposes vmware resource pools and folders through the API
fixes #6860 - add missing attributes to hostgroup jail
Fixes #6929 - Rephrase description string for api import_puppetclasses
Fixes #6998 - Accept native true for overwrite parameter to host API.
fixes #7082 - combo box style in host multi-select popup windows

Fixing the combo-box style in app/views/hosts/select_multiple_* pages.
Using selectable_f from app/helpers/layout_helper.rb instead.