E-mail notifications on comment replies setting

[aaronharding]

continuing from http://forum.getfuelcms.com/discussion/comment/8736#Comment_8736

This creates a setting which disables any attempts to send out email notifications on comment replies:

• wraps a check around the call to _notify in _process_comment in the blog controller
• hides the "Reply Notify" dropdown when editing a comment in the fuel admin
• updates to language files and blog setting files to list setting in the fuel admin

[aaronharding]

not sure what happened on blog_users_model though, the files are identical? :c

[daylightstudio]

Great.. thanks for doing this and things look good. I've merged it into the develop branch.

[aaronharding]

np. even the edit in controllers/blog.php? $notified is being returned FALSE, but it didn't seem to change anything at all so i went with it.