Move colon from code to language strings
fix header in Dutch local
apply half non-breakable spaces in French localization
Revert "apply half non-breakable spaces in French localization"

This reverts commit d90ef1e0b81e3ab4cb0e2394acce6ff5970dc67c.
Merge remote-tracking branch 'origin/master' into trailingcolons

Conflicts:
	lib/plugins/usermanager/lang/nl/intro.txt
Merge remote-tracking branch 'origin/master' into trailingcolons

Conflicts:
	inc/lang/cs/lang.php
	inc/lang/hu/lang.php
Merge remote-tracking branch 'origin/master' into trailingcolons

Conflicts:
	inc/lang/lv/lang.php
	inc/lang/pt/lang.php
Merge remote-tracking branch 'origin/master' into trailingcolons
Merge pull request #719 from splitbrain/trailingcolons

Move trailing colons to the language strings