*Various changes to improve performance of Puzzle
** Removed resizing camera in gameplay
** Revised algorithm for moving pieces and pieces components
** Revised way of getting bounds of connecting component
** Changes way of detecting matching pieces - new branding
** Revised algorithm for connection checking (reduced from omega(n^3), but for cost that only selected piece and its matching neighbours are analysed (if moving component of two vertical pieces, holding the lower one and putting it to component that matches with upper one, this is no longer recognised)

*Added Fade-out effect
** Puzzle
** FindIt

*Added a piece of documentation

*Deleted several commented statements and unused methods