Folgertech Prusa i3 2020 upgrade parts

These are some upgrade parts to improve the Folgertech 2020 printer:

1. A support for a discount controller board. I use the "Delta Panel" by Scott Mason to hold the display. (http://www.thingiverse.com/thing:30330) This lifts it up above the top cross bar to keep it out of the way of the X-axis arm. I also created some brackets to "lock" the holder to the 2020 beam. They make the display a little more rigid.

2. An end cap to cover the raw 2020 aluminum ends. It snaps on.

3. A cabl