Might be replaced by something more clever, e.g. by erik, and does not yet support the second extruder or the bed.
its kind of not so cool, because you need 6 more ints.
Maybe isheating() should use the degrees directly, as it is not used in time-critical anyways.
Then it would be much easier. to have the offsets without additional variables.

(When using the lower and upper adc input bank)

Merge branch 'Marlin_v1' of https://github.com/ErikZalm/Marlin into Marlin_v1

Conflicts:
	Marlin/Marlin.pde
	Marlin/ultralcd.h

the M301 now returns the current PID settings of the machine.
M105 returns heating pwm duty cylce as "@:"

This reverts commit 8bcdb9f5f0.