Fix templatetag, #1077.
Merge pull request #1084 from normanjaeckel/EmptyPersonFix

Fix method for empty person, fixes #1077
fix #1085 maybe could be done better but for 1.5 integration this could be used . input 60< is converted to hh:mm
Merge pull request #1087 from DerPate/master

Agenda Item Time input fixes #1085