[SERVINF-184] Fix samplefile/sample_file typo.
Bump version number to 0.6.0.

The move to devise deserves a bigger bump that just patch-level.
Fix missed devise authentication step for workflows.

Was still trying to use the non-existent login_required method.
Merge branch '0.6.0-maint'

* 0.6.0-maint:
  Fix missed devise authentication step for workflows.
Bump version number to 0.6.1.
merged with version 6.1
Merge branch '0.5.3-plus-TL', remote-tracking branch 'remotes/upstream/0.6.1-maint' into 0.5.3-plus-TL