Translate en.yml to dutch
Translate devise.en.yml to dutch

Based on https://gist.github.com/JanDintel/5424640
Update nl.yml
Update devise.nl.yml
Translate controller strings to dutch
fix #770 preserve temp token across validation failures
addresses #795 checks for compiled file after compilation
add exit codes for failures
add remove conflicting superdebug file msg
#795 fix defaults and stop if frontend doesn't build
Tighen up file selection during template importing for #794.
Merge branch 'master' of github.com:concerto/concerto
fix #798 move owner into fieldset
removing dead link to close #797
remove excess route for #797
Merge pull request #787 from concerto/temp_token_preservation

fix #770 (preserve temp token across validation failures)
Looks good!
Feed selection saved when add content has validation error
Merge pull request #800 from concerto/feedSelection

Feed selection saved when add content has validation error
Fix plugin form redirect (bc88c61 had broken form errors)
Merge branch 'pr/799'

* pr/799:
  Translate controller strings to dutch
  Update devise.nl.yml
  Update nl.yml
  Translate devise.en.yml to dutch
  Translate en.yml to dutch