Deltabot settings and configuration adjustments.
Use X/Y/Z_MAX_PIN instead of X/Y/Z_MIN_PIN for top endstops on deltabot.
Enable QUICK_HOME for deltabot.
Add realtime delta geometry in Marlin_main.cpp.
Fix typo in MANUAL_HOME_POSITION (plural S missing) and reduce BLOCK_BUFFER_SIZE because 64 wasn't working for some reason.
Merged updates from Marlin_v1.
Fix home_all_axis to make QUICK_HOME work with Repetier-Host which sends G28 X0 Y0 Z0 instead of G28. Thanks to Matt Schoenholz for reporting this issue.
Fix typo (# missing before define).
{X,Y,Z}_{MIN,MAX}_POS are actually in Gcode coordinates.
Disable is now multi extruder compatible. M84 got a T option.
PID now per extruder. Fixed typo
Added support for Elefu RA Board and Elefu Control Panel
Turning off Control Panel by Default and Updating the link to the LiquidCrystal_I2C library to avoid confusion.
Merge remote-tracking branch 'upstream/Marlin_v1' into Marlin_v1
Fixing changed Configuration.h settings to be default values per ErikZalm Request.
Merge branch 'Marlin_v1' of https://github.com/ErikZalm/Marlin into Marlin_v1

This should fix issues with pull request 467, I hope.

Conflicts:
	Marlin/Configuration.h
	Marlin/Marlin.pde
	Marlin/ultralcd_implementation_hitachi_HD44780.h
Fixed small error in lcd define statements.
Fixed small error in lcd define statements.
Fixed small error in lcd define statements.
Trying to fix weird diff on ultralcd_implementation_hitachi_HD44780.h