Update README
Update README
allow Marlin to actually compile with Makefile pulled from Sprinter and a few other modifications
cardreader needs to include some other files
my local configuration
help residency not overflow
get M81 working
enable auto-reset before programming, disable afterwards
PROGMEM elements must be const
local configuration stuff- WATCHPERIOD causes breakage, disable. few other misc changes
more work on Makefile - actually rebuilds if Makefile or Configuration.h are altered, also much cleaner output
Merge pull request #54 from haxar/patch-1

M109 EOL fix when TEMP_RESIDENCY_TIME is undefined; printer interface (p...
Added support for Gen3+ (Pins file only)
Added late z enable. (blddk request)
Only calculate look ahead if >2 moves in buffer.
Removed some FORCE_INLINE to save memory.

Signed-off-by: Erik van der Zalm <erik@vdzalm.eu>
Added MAX6675 support. (Thanks to gregfrost)
Needs some work to remove the blocking in read max6675.
fixed z-disable bug.
Merge remote-tracking branch 'upstream/master' into Marlin_v1

Conflicts:
	README
- Pins for modified GEN7 assigned
- Added support for ATMega1284
- added support for ATMega1284P
- added info for using GEN7 configuration
-disalbe beeper if BEEPER_PIN = -1