dojo.date.compare with undefined produces unpredictable results, so check inputs first. Fixes #5701 !strict
dojo.date.compare with undefined produces unpredictable results, so check inputs first. Fixes #5701 !strict

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@12185 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful