Changes

Note for OLPC-XO laptop users: the buttons on the display can also be used.

Note for OLPC-XO laptop users: the buttons on the display can also be used.

* The left-hand buttons can be used to move a stack of blocks or turtle

* The left-hand buttons can be used to move a stack of blocks or turtle

* o button runs the selected stack of blocks

* o button runs the selected stack of blocks or returns the selected turtle to the home position (center of the screen)

* × button deletes the selected stack of blocks

* × button deletes the selected stack of blocks

* ✓ button returns the selected turtle to the home position (center of the screen)

* ✓ button runs the 'start' stack

* ◽ button selects the next block (in the order in which they were added) (only in version 100+)

* ◽ button selects the next block (in the order in which they were added) (only in version 100+)