Extended Preheat options

Preheat LCD menus base on code by D-Base

Set flow rate (extrude-mutliplier) for each extruder individually

Extension of M221, Tune menu

Update on 140315

Add support for disabling encoder control for feedrate multiplier

Added CHDK support

Signed-off-by: Matthew Schick <matthew.schick@gmail.com>

Added CHDK support to take pictures instead of doing an IR command, see more about how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/

Added so M240 can be used to trigger CHDK instead of sending an IR signal, see more about CHDK here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/

Fixed Finnish translation

- Fixed Few finnish transalations
- Removed duplicate contrast define

temperature.cpp: Fix PID_DEBUG compile error.

Update README.md with Autotemp typo fix

Add M665 to dynamically set delta configuration

Conflicts:
	Marlin/Marlin_main.cpp

Various typo fixes #5 - only in comments, no code changes.

Various typo fixes #4 - only in comments, no code changes.

autretract fix

Clarify which PID values to enter

Update menu plan

Fixed typo.

Various typo fixes #3 - only in comments, no code changes.

I made these changes previously, but I can’t find the commit now. This
reapplies the changes to get auto retract working again.

Conflicts:
	Marlin/Configuration_adv.h
	Marlin/Marlin_main.cpp

Updated gen3+ board pins names to current convention

Users can be confused as to which values to enter after a PID tune. Updating the message to help clarity it.
New message: "PID Autotune finished! Put the last Kp, Ki and Kd constants from above into Configuration.h"

Old message: "PID Autotune finished! Put the Kp, Ki and Kd constants into Configuration.h"

Auto bed leveling at arbitrary points

Fixed compiler errors on Ubuntu using arduino-core

Use constants instead of numeric literals

Prevent G29 without first homing in X and Y

If position is unknown, then G29 can be dangerous.