sorting by created_at column ASC in sub-documents folder
cherry-pick 2
cuke scenario is passing
merged with upstream
fixed cuke to test for sorting logic
pong to thomas: working on cucumber feature
pong to marcelo
cucumber scenario passing for sorting subdocuments
undefined step now working: page show a list of members
final merge
Merge pull request #192 from decareano/marcelofix

Sort children documents
merged upstream
pulled latest from Bryan
added scenarios to articles.feature and made them go green
added controller spec for preview action