* Added button in new puzzle window for finding grids with specified words.
* Added dialog for viewing similar words.
* Added dialog for managing word lists.
* Added dialog for configuring word list usage.
* Added dialog for editing page headers.
* Added more options for PDF export.
* Added ability to lookup clues in clue tab.
* Added dialog for managing clue databases.
* Added ability to sort words in main word control by alphabet and score.
* Added next / previous buttons for editing clues.