Show admin buttons on all settings pages
Update supervisor (3.0b1 -> 3.0)
i18n: extract new messages
i18n: New German translations
Update english translation files
Split i18n string ("overview"/"intro")

see #545
Merge branch 'develop' into new-german-translations
Updated after seperating "IntroOverview"
Fix new comment abort url (fixes #546)
Merge pull request #545 from carschroeder/new-german-translations

Updated English and German translation files
Switch back from 'sorting_order' to 'proposal_sort_order'
Compare https://github.com/hhucn/adhocracy.hhu_theme/issues/443
Change 'sorting_order' to 'proposal_sort_order' also in advanced user settings
Update zope.testbrowser (4.0.2 -> 4.0.3)

This makes the shibboleth doctest work, as
zopefoundation/zope.testbrowser#4 is pulled in this release.
Be more tolerant in case of invalid solr entity dereferencing
Remove version pin for WebTest to make installation work again

Fixes hhucn/adhocracy.hhu_theme#448
Add Server Port and PID to the X-Server-Machine header

Fixes hhucn/adhocracy.hhu_theme#429
Fix for settings not working from instance
Merge remote branch 'carschroeder/admin-buttons-on-all-setting-pages' into develop
Allow came_from in welcome URLs

Fixes hhucn/adhocracy.hhu_theme#430 .
Merge pull request #550 from phihag/welcome_redirect

Allow came_from in welcome URLs