ErikZalm/Marlin — pull request #209 by ijackson (2012-08-10 23:49:00+00:00)
Title: M206 fixes, and ancillary improvements

In this series of changes:
* Improve the Makefile and .gitignore somewhat
* Make M206 offsets work properly
* Arrange to store M206 offsets in the eeprom as appropriate
* Save some program memory so that the result still fits in an atmega644p with SD and EEPROM support enabled.
NB as part of this I bumped the eeprom version of course.

Comments welcome. Thanks.