ISIS-618: bookmarked actions were broken...

post previous refactoring, the PageParameters held in the BookmarkTreeNode
were incomplete for action prompts (issue ultimately primarily to do with
using mounted pages for action prompt)

In addition:
- update to todo app, new 'categorized' action.
ISIS-638: copy link correct when page rendered.

When render a new entity (eg from following a link), then automatically set
up the URL of that entity into the zclip copy link.
ISIS-646: upgrade to DN 3.3.6

Along with workaround for NUCCORE-1103, http://www.datanucleus.org/servlet/jira/browse/NUCCORE-1103

See also https://issues.apache.org/jira/browse/ISIS-647, which is to backout said workaround.
ISIS-641: allow actions to return objects of type java.util.Collection ...

... not just java.util.List.
ISIS-649: custom div to hold theme

derived from applicationName