fixes #6427 / BZ 1109737 - remove Nest option from taxonomy actions

This commit removes Nest as a valid option for taxonomies (e.g Organization
& Location)
fixes #6434 - wrap long lifecycle environment names in CV promotion
fixes #6439 / BZ 1094190 - Include notification on add/remove pkg filter rule

When the user adds/removes a rule from a package filter (associated
with a content view), display a notification consistent with what
is done for package groups.
fixes #6428 / BZ 1109062 - Bulk Host Collection - disable add/remove when no hosts selected

When the user is performing a content host bulk action, if they do
not select any content hosts, disable the add/remove buttons
for host collections.
Fixes #5628 - remove converted v1 API controllers and tests.

Remove all of the v1 controllers and tests that have already been
converted to v2 and are no longer used.
refs #3272 - fixing db/seeds.rb for katello, BZ 868910
Merge pull request #4368 from komidore64/rmi3272

refs #3272 - fixing db/seeds.rb for katello, BZ 868910
Merge pull request #4303 from waldenraines/5628

Fixes #5628 - remove converted v1 API controllers and tests.
fixes #6433 - allow a lifecycle environment to be unselected

When promoting a content view version, it's now possible to uncheck the
lifecycle environment checkbox.
Merge pull request #4365 from stbenjam/bz1111080-uncheck-env

fixes #6433 - allow a lifecycle environment to be unselected
Merge pull request #4362 from bbuckingham/issue-6427

fixes #6427 / BZ 1109737 - remove Nest option from taxonomy actions
Merge pull request #4363 from bbuckingham/issue-6428

fixes #6248 / BZ 1109062 - Bulk Host Collection - disable add/remove when no hosts selected
Merge pull request #4367 from bbuckingham/issue-6439

fixes #6439 / BZ 1094190 - Include notification on add/remove pkg filter rule
Merge pull request #4366 from stbenjam/6434-long-env-name

fixes #6434 - wrap long lifecycle environment names in the UI
fixes #6442 / BZ 1090643 - content view - add support for content view copy/clone

This commit contains the changes to support creating a new content view
as a copy of an existing view.  This is to bring back functionality that was
lost during the content view rework.  The copy operation will only copy
the 'structure' of the content view (e.g. repos, filters, puppet modules,
details) and it will not copy the published views, history or tasks.
Fixes #6457,BZ1115089 - Match multiple items on contents changed

The problem when uploading multiple items is that we were doing a unit search
that could have multiple results but we were only looking at the first one. We
need to get the ids of all.
Fixes #5181/BZ1110955 - filter available for composte CV server side.

The bugs mention that the total is incorrect when using the select all
control.  This was due to Bastion transforming the response from the index
call on Content Views and hiding non-applicable results.  This commit
moves that logic to the server side where it belongs.
Merge pull request #4352 from waldenraines/5181

Fixes #5181/BZ1110955 - filter available for composte CV server side.
fixes #6450 - server returns correctly summary status, BZ 1094826
Merge pull request #4371 from bbuckingham/issue-6442

fixes #6442 / BZ 1090643 - content view - add support for content view copy/clone