Merge commit '0c36faa8034f2c21e834efcff73aa41137be31dd' into experimental
Fixed arc offset
Thanks to Erik van der Zalm
add my name
Merge pull request #158 from kliment/master

fix compiling from makefile
Merge from experimental, thanks to triffid_hunter
Merge pull request #159 from midopple/experimental

Fixed arc offset
Merge pull request #160 from kliment/master

Command M106 / M107
Added M93 command. sends current steps for all axis
Merge pull request #161 from se5a/master

Added M93 command - sends current steps per unit for all axis
Fixed small bug in arcs when segemnts are zero
Thanks to hurzl
- Extrudmultiply with code M221 Sxxx (S100 original Extrude value)
- use Feedratefaktor only when Extruded lenght > 0
- M106 / M107 can drive the FAN with PWM + Port check for not using Timer 1
- New Option --> FAN_SOFT_PWM, with this option the FAN PWM can use every digital I/O (PWM with 500 hz)
- Added M93 command. Sends current steps for all axis.
When endstop is hit count virtual steps, so the print lose no position when endstop is hit
Version 1.3.15T
- M206 - set additional homeing offset (Thank to se5a for this idea)
  (First Version is without saving to EEPROM)
- Option for minimum FAN start speed --> #define MINIMUM_FAN_START_SPEED  50  (set it to zero to deaktivate)
Ignore ":" in comments.
Fix typo in Parameteroutput
Extra Retract Feedrate for Extruder
- Use extra extruder feedrate limit for reverse moves, and also the first forward move after a reverse
Fix commit Text
Merge pull request #168 from kliment/master

Bug: turn on SD_FAST_XFER_AKTIV and compilation fails if PID is
Version 1.3.17T
- M303 - PID relay autotune possible
- G4 Wait until last move is done
Add MOTHERBOARD 51 for GEN6 with Heatbed and Heatbedsensor