moves from rack to board and back again
limits board to 2 letters
shakes if board full
unselectable, pointer on buttons
centering
moves tiles into tds

added jquery ui
centering using fixed width
drag over highlighting WIP
minor changes
finally reliable coloring with drag over
drop removes class
drag drop works -- move toggle broken
need drag back...
fixed the click to move
drop back works
nice buttons -- do nothing check button
tiles look better and functionality restored
hide the blank text
more css
more css
refactored to use new 2 letter picking bag
with new unit test