production update

soon V1 ( first shipped version).
all models changed..a little.
add cable holder
new plate_y  separate
back to old bed holders (new will be in option)
changed base for more solid
change end_x_huxley for more space on servo space
bearing holder x : new holders front on plate_x
new fishing line tension back separate ( was breaking)
plate_x changed for more strong supports on the side
new bearing holders holes : larger : was too tight and printer
resolution dependent
new reprappro tongue on extruder for bowden cable ( brass element)