fix javascript issue

fixes #175
fixes #176
add error logging to auphonic curling
:shipit: release 1.8.5
improve ADN module

- write ADN API fails to Podlove log
- add fallbacks to multibyte string functions
- sort languages so it doesn't need to be done in code
- fix some non-ADN related notices
correct version handling in contributors module

fixes #165
Change feed redirect hook (Domain Mapping plugin)

fixes #181
Add thumbnail as og:image and create a og:description
refactor: introcuce Model\Episode::description
update changelog
prevent adn module from triggering a post

fixes #141
fix use of deprecated function
adn module: refactorings
merge