WP18 Personalities import realised. needed some refactoring on the XmlImportManager.
dates are not separate entities, neither are places of birth/death
Merge remote-tracking branch from mike
Merge latest import work.
Minor changes to fix import issues (command-line onlu):

 - don't use passed-in scope to create import user. This meant that
   the user was created in the scope of the units we want to import,
   i.e. a repository.
 - using regular classLoader instead of system classLoader allows the
   allowedNodeProperties to be found.