Added VM to list of TAG_CLASSES.

Added VM to list of TAG_CLASSES  to show My Company Tags for VMs

https://bugzilla.redhat.com/show_bug.cgi?id=1150612
https://bugzilla.redhat.com/show_bug.cgi?id=1153336
Remove the commented out lines.
Remove VDI references from miqhost
Remove VDI logic from Lib directory
Remove VDI models, specs and other references.
Migration to remove VDI tables
Remove VDI controllers, views, and helpers
(cherry picked from commit e379a29)
Remove more VDI files
Remove VDI based methods
Change code to no longer check VDI settings (IFs, CASE, arrays.include?, etc)
Remove and fix specs related to VDI
Data migration to remove VDI tab from VM Provision dialogs
Rewritten chargeback view to HAML
Merge pull request #676 from gmcculloug/remove_vdi_support

Remove VDI support
Removed graphical summary screens

https://github.com/ManageIQ/manageiq/issues/817
Merge pull request #794 from skateman/view-chargeback-to-haml

Rewritten chargeback view to HAML
Merge pull request #841 from skateman/remove-graphical-summary-screens

Remove graphical summary screens
Fixed issue in Catalog Explorer
removed old graphical summary screen images and css
Remove an extra hash.
yes no prompt with a default

It is like agree, but follows our naming conventions
and it allows for a default
Merge pull request #869 from romanblanco/fix_catalog_explorer

Fixed issue in Catalog Explorer
Merge pull request #749 from kbrock/appliance_console_yn_prompt

yes no prompt with a default