content views - copy form - give name input focus

Minor change to the 'copy' widget, so that when user clicks
the link to open it, the focus is given to the name input and
released when the widget is closed.
content views - ui - add support for cloning an existing definition

This commit contains changes to allow the user to click 'clone'
while an existing definition is open and create a copy/clone of it.

Note: it will copy of the content (products/repos), but not the views
that have been published with the originating definition.
content views - update ui controller to use correct rules for actions

Updating the UI controller for content view definitions to use the
correct rules/permissions for the controller actions.
content views - fix permission on ContentViewDefinition.creatable?

Looks like there may have been a copy/paste error during
the original impl.
content views - adding in some spec tests for definition cloning
Merge pull request #1357 from bbuckingham/fork_content_views_clone

content views - ui - provide support for cloning a definition