Fix merge issue that removed all staff from developer branch :-).
Undo my stupid mistake (I have pushed issue-957 to master instead of develop). Do I have copied files from GitHub master and push them back..
refs #957: Rollback changes in showing date
ref #957: Birthday is not required
Merge from SVN branch 1.2.
Release 1.1.12
Release 1.1.0
Release 1.0.0