Updated Config file for Missionbot2 parameters

288 — Needed to invert Z direction due to orientation of the motor
(facing down)
314 — Printer is able to use Auto Bed Leveling (ABL). This also allowed
Z Safe Homing to be used since the printer must home to ABL location.
323-326 — Defined the points for the auto bed leveling. Since a rail is
used instead of the cap screws, RIGHT and BACK can be changed and ABL
will still work. In the final version, RIGHT and BACK should be as
large as permitted to improve accuracy.
329-331 — This is the relative position of the ABL probe with respect
to the Hot End.
353 — Z Safe Homing is required since the ABL probe is also being used
for Z Home
362-363 — When the G28 (Home) command is used, the carriage will move
to this X/Y coordinate before homing Z.
397 - Adjusted steps for Z axis motor and Wades Extruder such that 1
unit = 1mm.  Current values accurate to 5%.