Removed old fast tunnel script as I merged functionality into ftunnel.  Renamed chickenator.cmds too coop_opt because it is the optimized chicken coop builder, not raw commands.
Added "gatherItems" function which brings items from other slots down to the specified slot if the match.  Exposed this function throught TurtleSim.
Reworked bridge to use command line args, support multiple stacks (i.e. go long than 64 if it has materials) and stop when it reaches a wall, or runs out of materials.
Updated ftunnel to use command line args and optimized process for placing torches as well as blocks down.
Added more sophisticated torch placement algo I am trying out.  It prefers left or right up, then does behind.  If it works, will add to crush.
Further tweaks to prototype torching routine.   Added ability to place a block up if available and added parameter for controlling behind placement. The whole goal is to have it place torches up as much as possible so that future turtle activies don't bump into torches.
Switch feather to work from bottom and adds briding capabilities.  It now works similar to ftunnel so they should play well.  Does not currently use new torching routine.