Toggle menu for PSU from LCD pannel

From the prepare menu, accessible when is not printing, you have the
possibility to turn off the PSU when is on et vice versa.
From the host, you can turn off or turn on the PSU then the menu is
updated accordingly.
From the LCD message, the printer status is reported ready or off
respectively when the PSU is on or off.
Turn off power supply off-load

Disable the high current output and wait a little before to turn off,
because the interrupting capacity of the PSU is unknown.
Could be a function if needed by other.
No bed config for RAMPS

The motherboard 35 is a config without bed with this pins setting :
D8 Extruder
D9 Fan
D10 Controller Fan
Report temperatures for all extruders
Delta disabled by default
Allow command line compilation when using BEEPER.
Fix location of avrdude.conf
Merge pull request #520 from henrikbrixandersen/Makefile-fixes

Makefile fixes
added Azteeg X1 motherboard
Merge pull request #521 from lajos/azteeg_x1

added Azteeg X1 motherboard
fixed compile error in ultralcd.cpp when PIDTEMP undefined
fixed another !defined(PIDTEMP) compile in ultralcd.cpp
Merge pull request #525 from lajos/ultralcd_pid

ultralcd.cpp compile errors when !defined(PIDTEMP)
Fix Pin Description Typo

Reverse 'Bed' and 'Fan' at the RAMPS 33 Description.

Signed-off-by: Christian Inci <chris.pcguy.inci@gmail.com>
Merge pull request #526 from ch100/Marlin_v1

Fix Pin Description Typo
Added DISABLE_MIN_ENDSTOPS
Merge branch 'Marlin_v1' of https://github.com/ErikZalm/Marlin.git into Marlin_v1

Conflicts:
	Marlin/Configuration.h
	Marlin/Marlin_main.cpp
	Marlin/language.h
	Marlin/pins.h
	Marlin/ultralcd.cpp
Added thermistor 60 to configuration.h
Only clamp panel movements if software endstops are enabled
Fix for ugly code compilation errors in SERVO_ENDSTOP checks