This is _not_ automatically the cronological, since deleting a file will free
the filesystem descriptor for it, which then will be used by the next file copied on it.
Since this makes the auto0.g file very inaccessible, I put the option back, to have it in the prepare menu.

this should satisfy https://github.com/ErikZalm/Marlin/pull/373

as a reminder, auto0.g will be executed every time after a boot with sd card present and file present.
thereafter, if there is a file auto1.g this will be done. Thats IMHO the best place to put settings, and prepare heating.
I also execute again after each (now again via the prepare menu) before starting a new print/ after a failed one.
It for me 100% replaces any start.gcode form the slicers.

also, removed some trouble for compilation with corexy.
I think that babystepping is only possible in z for a delta tower.
not sure if it would be usefull to step individual motors on a delta, i don't own one

I strongly vote for it being a single gcode, because otherwise the triggering from the menu is terrible.

It is a realtime control over the head position via the LCD menu system that works _while_ printing.
Using it, one can e.g. tune the z-position in realtime, while printing the first layer.
Also, lost steps can be manually added/removed, but thats not the prime feature.
Stuff is placed into the Tune->Babystep *

It is not possible to have realtime control via gcode sending due to the buffering, so I did not include a gcode yet. However, it could be added, but it movements will not be realtime then.

Historically, a very similar thing was implemented for the "Kaamermaker" project, while Joris was babysitting his offspring, hence the name.

say goodby to fuddling around with the z-axis.

Check the Readme for instruction how to enable and configure the feature

Update Configuration.h

Update pins.h

Include Pins cpu Sethi 3D

Include CPU Sethi 3D

add ENCODER_PULSES_PER_STEP

FIx compilation error when enabling SERVO_ENDSTOPS (#591)

Changed EEPROM CHITCHAT behavior. M503 is always enabled.

Fan fix for Panelolu2+Sanguinololu.

Fixed bug that makes ulticontroller knob backwards introduced Feb 28 201...

Bug introduced in version 6beb42cdf6.
Robert did a good job of simplifying but messed up this chunk of code.

Looking at working version: 839bef6d5d
it seems there is no case where encrot3 should be defined as 2
because if ULTICONTROLLER is defined then NEWPANEL is also defined.

Fix the example delta configuration by adding DELTA_DIAGONAL_ROD_2

add command M666 for adjusting delta printer endstop position

Add duplication and auto-park mode for dual x-carriage support.

RAMBo LCD Support, Additional Pins, and Arduino add ons

Improvment for delta, Honeywell thermistor table and move from panel

Conflicts:
	Marlin/Marlin_main.cpp

Detect OS in Makefile to use the correct avrdude.conf path

separate INVERTING for MIN and MAX endstops (6 #defines instead of 3)

convert PROTOCOL macros from statements to (multiple, comma separated) expressions

renamed ArduinoAddons/Arduino_1.x.x/sanguino to Sanguino. Now make works...