sorting by created_at column ASC in sub-documents folder
cherry-pick 2
cuke scenario is passing
merged with upstream
created send_welcome_message method in mailer.rb. Added calls in registration_controller & authentication_controller. Created mail HTML template in views/mailers
fixed cuke to test for sorting logic
updated content of welcome email
added rake task to send welcome email
fixed rspec test not passing
Merge pull request #186 from yggie/mailer

Mailer
renamed rake task file
renamed rake task (forgot to add file to tracking)
forgot to add deliver to mailer
pong to thomas: working on cucumber feature
pong to marcelo
Merge pull request #188 from yggie/mailer

Mailer fix
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