Bug fix for Sprinter, using E axis instead of A.
Merged Richard's and Ami's change with a little bit of cleanup, fixing issue #24.
Almost working
Vision all working, just need to apply offsets.
Feeder vision is finally fixed!
Update README.md
Merge branch 'develop' of https://github.com/rspelling/openpnp into rspelling-develop

# By Richard Spelling
# Via Richard Spelling
* 'develop' of https://github.com/rspelling/openpnp:
  updated sprinter driver

Conflicts:
	gui/src/main/java/org/openpnp/machine/reference/driver/SprinterDriver.java
initial modifications for nozzle tip
and the main frame