Simplify month difference handling in the same way as for years: try a simple calculation, see how well that works, and adjust accordingly.
Simplify month difference handling in the same way as for years: try a simple
calculation, see how well that works, and adjust accordingly.

zaccharles/nodatime,zaccharles/nodatime,jskeet/nodatime,jskeet/nodatime,malcolmr/nodatime,nodatime/nodatime,zaccharles/nodatime,malcolmr/nodatime,zaccharles/nodatime,malcolmr/nodatime,zaccharles/nodatime,BenJenkinson/nodatime,nodatime/nodatime,malcolmr/nodatime,BenJenkinson/nodatime,zaccharles/nodatime