Added spinning dice animation
Updated dice animation. Fixed padding.
Removed obsolete gfx. Adjusted menus.
Fixed bug with dice animation click
Updated README
Added main menu char selection images
Added spells buttons for all wizards.

Changed behavior of buttons for spells that cannot be casted due
to not enought mana available. Button will be no be blended with
0.5 alpha factor. Fadeout will be disabled.