fix T rendering problem;
Adjust tetromino starting positions
Pieces can be frozen - reverse changes to TETROMINOES for passing tests now - will update later
Pieces cannot move if they are frozen
Update starting positions of tetrominoes
Refactor so that current position variable only needs to be changed in one place
Retrofit to work with Tetrominoes object in a source file
New tetrominoes source file
Pieces rotate and update the position of their rotations
Add a nice blue background and make the board gradient bolder
Piece adjusts all rotations when moving left
piece freezes when it hits the bottom of the board
Fix fourth rotation of the J piece
It adjusts all rotations to the right when moving right
Merge pull request #4 from JonathanTR/piece-rotation

Piece rotation