fix missing background colors on small screens
Clarified proposal sort description 'controversy'
don't delete texts when deleting a page

Deleting the texts will also remove the pages title
which looks strange in event messages.
Merge remote branch 'liqd/develop' into develop
Clarified proposal sort description 'mixed'
Merge pull request #608 from carschroeder/mixed-sorting

Clarified proposal sort description 'mixed'
use th for row headings in debug/components.html
update styling for table and figure
pep8
fix "jump to content"
Clarify role of feedback button
update i18n

especially update translations for italian and dutch
Merge pull request #591 from carschroeder/sort-by-controverversy

Clarified proposal sort description 'controversy'
Merge pull request #603 from xi/feature-dont-delete-page-texts

[RFC] don't delete texts when deleting a page
Redirect to defined post register url after global user import
Merge pull request #606 from xi/feature-430-rework-user-profiles+

rework user profiles
Disable attention_getter on error pages
i18n: extract new messages
i18n: update all translations
fix image permissions

some where 640 which results in 403 errors
and others where 755