Fix mix-it/linkit#98: New JobCommentNotification. Runs every minute, notify author of article, speakers of session, and every Staff member of a new comment.
Badge are not so important now: make job runs every 10min instead of every 1min.
Comment notification: mail now in English, and better looking.
Fixed bootstrap classes typos
Merge pull request #112 from clacote/feat/98-comment-notification

Comment notification, in English, and better looking