Facebook removed the API and facebook integration is broken now, so lets
remove it.

closes #7874

closes #7833

This is required to make url_for(StatusMessage.new) work

closes #7814

Fixes #6564.

closes #7775

closes #7769

This feature only worked on the same pod and was more confusing than
useful.

This is needed to properly initialize Handlebars partials without
a document ready handler.

fixes #7739

closes #7740

fixes #7727

closes #7642
fixes #7633

closes #7690

closes #7683

Fixes #7679

Fixes #7681

closes #7682

closes #7624

fixes #1649

closes #7601

Use the already available contacts data for the prefill

Fixes #7499

According to https://msdn.microsoft.com/en-us/library/dn629259(v=vs.85).aspx,
“the minimum-scale, maximum-scale, and initial-scale properties are currently
unsupported for Internet Explorer for Windows Phone“.

For further information on the viewport properties see
https://drafts.csswg.org/css-device-adapt/#viewport-meta

closes #7589

This was needed for IE8 and IE9

Was needed for IE8

Fixes #7541

updates tag to follow standard styleguide