do not show search box when logout is also not shown (first install, etc)
Move all date/time settings (including NTP) to System -> Date/Time
Merge pull request #1530 from Zentyal/jacalvo/new-datetime

Move all date/time settings (including NTP) to System -> Date/Time
Merge branch 'master' into jcarrion/responsive-corrections

Conflicts:
	main/core/ChangeLog
fixed whitespaces