Fixed English strings concerning agenda items and organizational items and their relation. Fixed #1271.
Merge pull request #1283 from normanjaeckel/FixEnglishString

Fixed English strings concerning agenda items and organizational items a...
Portable build fix: Install missing roman package.
Fixed #1275 (Creating assignment pdf failed)
Merge pull request #1274 from emanuelschuetze/fix-portable

Portable build fix: Install missing roman package.
Merge pull request #1276 from emanuelschuetze/fix-1275

Fixed #1275 (Creating assignment pdf failed)
Cleaned up some widgets and the base.css. Removed icon definitions.
Merge pull request #1286 from normanjaeckel/CleanUpIcons

Cleaned up some widgets and the base.css. Removed icon definitions.
Renamed 'permission_required' to 'required_permission' etc.

Renamed method and attribute of openslides.utils.views.PermissionMixin. Renamed attribute of widgets and main menu entries. Fixed #1160.
Updated test coverage minimum.
Updated requirements_production.txt.
Merge pull request #1289 from normanjaeckel/UpdateRequirements

Updated requirements_production.txt.
Merge pull request #1288 from normanjaeckel/UpdateTestCoverage

Updated test coverage minimum.
Merge pull request #1287 from normanjaeckel/PermissionCleanup

Renamed 'permission_required' to 'required_permission' etc.
Replace own CKeditor with dedicated app