updated readme
Merge branch 'edge' of github.com:OSHW/HackerBot
Merge branch 'edge'
removed old STL files
SmartXXL LCD case
GT2 belt update
removed old useless dir
added STL (calibration files)
plexy panel support v3
modified xxis endstop holder and front-left angular plate
updated plexi support v2
 Add z-stepper plate drawing .drw and .pdf
 Added plate support front-left drawing
unknow mambro updates!