Introduced special (bean) model properties: _class, _str and _toString.
Refactored tag factory utils.
Added generic media list widget constructor utility.
Added text highlight tag factory utils.
Enhanced the generic search screen: grid-based, highlights search phrase.
Enriched transaction rollback example.
Introduced extra (custom) tag attributes (e.g. form buttons).
Adjusted form constructions to new tag construction concept (extra attributes).
Changed layout of the "new task" screen.
Minor improvements.
Refactored out pager, grid and form widgets from the static factory utils.