fixed bugs

added proper model indexes to mongodb models
added missed indexing and capped collection call to mongodb datastore
fixed paginator go to page bug, where all pages would be shown
replaced ng-repeat alert schema with alerter, javascript library
clearing alerts on state change
reverted network settings to slower convergence
fixed item-link menu dropdowns unusable
fit index page to full hd
added google analytics + angular library
added feedback modal and google forms survey as iframe