Implemented read notifications for comments per #149
Took out debug code for production
Added migration which was missing from initial commit
add server-side validation for mark as seen.  Remove mark on hover.
load seen field on annotations when loaded
Fix annotation mark as read validation
Added server side validation for marking comments as read
Moved mark as read button below reply thread, re-inserted checking for sponsor activities
Fixed users not seeing read markings
Added email sends for read notifications
Removed some whitespace
Merge branch 'master' into issue149

Conflicts:
	.gitignore
	app/models/Annotation.php
	app/models/DocMeta.php
	app/routes.php
	public/js/angular/controllers.js
load user isSponsor in init function, tweak email content / styling
styling tweaks
change mysql port back to default
revert .htaccess changes
Merge pull request #207 from opengovfoundation/issue149

Merged read notifications for Issue149.  Resolves #149