closes #7614

This was added by accident in 4e18f384.

closes #7598

This was a leftover from rails_admin which was removed in #7440.

closes #7597

They were added a long time ago and they talk about rails 3 ... we have
rails 5 now and scripts in the bin folder, so I think we can remove
them.

closes #7596

closes #7595

closes #7594

This is an internal active record table and shouldn't be touched. When
this is truncated you need to fix it again by running
`bin/rails db:environment:set RAILS_ENV=test`

This is a temporary fix until there is a new version of
database_cleaner.

closes #7606

closes #7605

closes #7601

closes #7583

closes #7600

closes #7599

Use the already available contacts data for the prefill

Fixes #7586

Use the already available data about the recipient for the prefill

Fixes #7539

closes #7593

closes #7592

Fixes #7476

closes #7591

closes #7590

Follow-up for #7578

Fixes #7587

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