Fixed wrong ordering of agenda items after order change

Fixed #875
Merge pull request #878 from ostcar/change_agenda_items

Fixed wrong ordering of agenda items after order change
Updated DE, FR, CS translation (typo in EN translation string).
Merge pull request #880 from emanuelschuetze/1.4.2-fixes

Translation typo update
Updated English translation file (for new translation string in motion config).
Merge pull request #881 from emanuelschuetze/1.4.2-fixes

Updated English translation file
Updated DE and FR translation (one new translation string).
Merge pull request #882 from emanuelschuetze/translations

Updated translations (de and fr)
Update CHANGELOG and INSTALL for 1.4.2
Merge pull request #885 from normanjaeckel/Prepare1.4.2

Prepare1.4.2
Release 1.4.2
Update version to 1.4.3-dev
Merge pull request #886 from normanjaeckel/Release_1.4.2

Release 1.4.2
Merge branch 'stable/1.4.x'

Conflicts:
	openslides/__init__.py