Full-text search field added to main menu.
Another component for a search field in the menu (having a different length from the one at the search page) must have been created - MenuSearchPanel. The original search field component is represented by the PageSearchPanel and both extend the abstract class SearchPanel. This solution was needed due to the Wicket "restriction" to have only one markup file for each class.
Searched phrase is also stored in a session to enable displaying it in the menu panel, too, and to keep it displayed until a user decides to change it.
CSS styles for wicket autocomplete and result highlighting were moved to an external css file.