Fix embarrassing issues which tests caught - when I bothered to run them.
Fix embarrassing issues which tests caught - when I bothered to run them.

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