Refactoring.
Fixed navigation table view.
Refactored using a NIB to layout the game view controller. Changed the board size calculation to use a predefined size and calculate the cell size accordingly.
Fixed the menu.
Started working on orientation change and resize.
Fixed orientation change problems.
Added buttons to the toolbar and implemented pause/play as well as next.
Merge branch 'develop'

* develop:
  Added buttons to the toolbar and implemented pause/play as well as next.
  Fixed orientation change problems.
  Started working on orientation change and resize.
  Fixed the menu.
  Refactored using a NIB to layout the game view controller. Changed the board size calculation to use a predefined size and calculate the cell size accordingly.
  Fixed navigation table view.
  Refactoring.