Levels 2 and 3 are complete.
Merge branch 'master' of https://github.com/recardona/BitBot
Fixed a bug that didn't allow the player to collide batteries from the right-hand side.
Fixed a bug that momentarily drew a huge battery bar on the screen by bounding player attributes immediately, rather than by catching them in an update loop - changed the bound_player_attributes into a Robot method to do so.
Level JSON data now has a battery attribute, allowing the level designer to configure the Robot with an initial battery level as desired.
Tweaked some parameters for the purpose of game design.