update(s) for image ev3dev-jessie-2014-10-07

Starting with image ev3dev-jessie-2014-10-07 there no longer is an ev3dev.rc.local script.
Merge pull request #20 from BertLindeman/patch-2

update(s) for image ev3dev-jessie-2014-10-07
Update i2c-sensor-addressing.md