Undo V.0.0.0.1-A - "Turtle"

List of changes:

• Map slightly extended
• Whenever you click enter and return to an Undo marker a tile either appears, changes colour, or disappears
• Different tile types and colours
• Visible undo marker
• Map editor (Dev only) Changed

List of known bugs

• Excessive use of Undo can cause game to be unplayable
• Tile types are useless
• You teleport of blocks from underneath (Only meant to be from sides)