notify user if user gets a reply on comment
change comment_user table to author and comment_id field to parent_id
change author settings.
Make some UI enhancement while saving notification setting.
model spec for send email to user after reply on comment.
Merge branch 'master' into ticket_589
Change notification message.
JS spec for email notification.
remove un-used space
setup email text file.
check author email
minor change.
remove hand cusor from flagged text
remove unlike option
add icon\'s for edit and reply link.
add email icon next to setting.
Change email formatting.
minor changes.
Merge branch 'story_599' of github.com:rdfrs/juvia
Merge branch 'story_606' of github.com:rdfrs/juvia