* initial refactoring to use address fieldsets on user creation and update
* generalize user creation form
** allow for multiple addresses in more flexible ways
** introduce general radio fields for user groups
* reuse dto on user creation with the help of zend-hydrator
* adjust user update form
* use hydrator for all user forms
* fixup to user init method
* add gpl license header
* remove empty home library option from user update form
* remove imports of non-existing classes
* custom submit label in user update form
* pass library list with ils authenticator
* rename property for less confusion
* implement possibly required ils authenticator method
* render address id field only if value non-empty
* convert user data property names to camel case via custom strategy
* pass root input filter with context to nested input filters
* relax requirements for first mandatory user address
* first fixes to admin edit form
* completely specify admin edit form in its own file
* include job title field in admin edit form
* revision of admin edit form