Fix Makefile
Fixed AUTOTEMP (M109 S215 B260 F1 starts autotemp)
Changed SLOWDOWN. IF this does not work ok OLD_SLOWDOWN is the old algo.
Merge pull request #138 from triffid/fix-makefile

make should rebuild if configuration or Makefile is changed
Update readme file
fixed catsting to (int)e in serial error messages.
see https://github.com/ErikZalm/Marlin/issues/148
fixed quickhome
added support for the UltiController
reinitialize the lcd, if the SD card is inserted or removed. It seems that LCDs can confused by electrical discharges from time to time.
Since a removal or insert of the sd card takes a long time in firmware, just reinitializing the lcd does not hurt.
actually, it solves a problem with the UltiControlle
Wrap the call to turn off the bed heater in a #if to prevent a compile error on boards that do not have a bed heater
Merge pull request #152 from loganb/Marlin_v1

Fix compile error on boards without a bed heater.

I could not find why this problem was introduced. 
Its quite obvious, so I think its in general interest to merge.
Added support for 2nd extruder temperature to UltraLCD
Show proper temperature for extruder 2
adding M120 and 121 for turning on and off the endstops only for homing function
Fix to allow M120/M121
Merge pull request #156 from Atntias/patch-2

Fix to allow M120/M121
Merge pull request #155 from Atntias/patch-1

adding M120 and 121 for turning on and off the endstops only for homing
Merge pull request #154 from daid/Marlin_v1

Added 2nd extruder temperature LCD readout and setting.
Added temperature window to M109. This is needed for systems with no overshoot PID.
Merge branch 'Marlin_v1' of github.com:ErikZalm/Marlin into Marlin_v1
Small cleanup