comment_notify 7.x-1.0-beta2

Changes since 7.x-1.0-beta1:

• #790586 by pwolanin: add more secret info to the hash in the install function
• #1252394 by greggles: Set weight of notification element to bottom (i.e. 19)
• #1234818 by moonray: comment notifications turned off for new users by default: variable misnamed
• #639618 by greggles: user warning: Field 'notified' doesn't have a default value
• Comment cleanup
• #958670 by scor, greggles: Wrong documentation for comment_notify.notify
• #1224444 by greggles | sun: Only add javascript if truly necessary, optimize css/js addition for sitewide performance
• #1224444 by sun | neclimdul, moonray: reduce js errors when the subscribe options are limited
• #748172 by doublejosh: Improve profile settings wording
• #1176546 by greggles | tsvenson, Dave Reid: Make user profile setting available in Manage Fields
• #1172126 by greggles | Dave Reid: PHP notice when anonymous email address not required