opravena chyba pri textovem vyhledavani tabulky
unsuccessful atemps to relative positioning
Ukladani - Vytvoreni noveho formatu a ulozeni do DB
Save funkcionality moved from MainScene to separate class SavePerformer
Cretion of new report - saving text element
- Created PaperSetting class representing paper (height, width, margins)
it's also used for synchronising header and footer position.

- Created class AreaWidget representing areas of document (top margin,
left margin, header.....)