Made AVL OOM message more user-friendly.
Made AVL OOM message more user-friendly.

closes #72

laprej/ROSS-CXX,JohnPJenkins/ROSS,laprej/ROSS-CXX,carothersc/ROSS,carothersc/ROSS,JohnPJenkins/ROSS,JohnPJenkins/ROSS,laprej/ROSS-CXX,carothersc/ROSS