Refactored property model and added support for generics.
Updated license header.
Added new class and property utils.
Added support for generics in models' property types.
Implemented detection of form fields requiring value options by class.
Introduced data manager and used it to retrieve form input value options.
Fixed bug in InMem DB.
Enhanced generic entity appearance.
Refactored DB-aware data containers.
Enhanced multi-value read-only form data display.
Fixed date conversion util (to return null if value is empty).
Improved util for textual representation of JavaBeans.
Enhanced navbar search button appearance.
Code clean-up and other minor improvements in the Task Planner demo app.
Improved rendering of form input values: display link only for entities.
Enhanced display of empty collections in forms.