Patch from Shaun Kalley from bug #56023 - On CellReference, implement hashCode, fix the equals(Object) logic,
Patch from Shaun Kalley from bug #56023 - On CellReference, implement hashCode, fix the equals(Object) logic,

stuartwmurray/npoi,antony-liu/npoi,tkalubi/npoi-1,xl1/npoi,Yijtx/npoi,tonyqus/npoi,jcridev/npoi,vinod1988/npoi