Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'upstream/master'
**Change** Default subscriptions value from 'Y' to 'R' for Comment reply notification import routine.
Add validatioin to verify if the  comment_mail_reply column exists (if the plugin Comment Reply Notification is installed).
Merge pull request #52 from Reedyseth/master

Add validation to verify if the comment_mail_reply column exists.