Joseph Adams December 17, 2014:  Updated AllowComparativeArithmetic (markdown) [bcfbc5b]
Joseph Adams December 16, 2014:  Updated AllowComparativeArithmetic (markdown) [13f3e67]
Joseph Adams December 15, 2014:  Updated AllowComparativeArithmetic (markdown) [d0c51ba]
Joseph Adams December 15, 2014:  Created AllowComparativeArithmetic (markdown) [d803868]