Populate routes to javascript on every full page load. Fixes #541

Before, we dynamically generated the javascript file via erb.
This causes problems with the asset pipeline, if an user changes the routes.
Remove routes file from assets set.

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Message model validates fields with 'email' in name with regexp for email format.

Before this change Message fields like 'backoffice_email' were not validated with email format. This was because the field name had to be exactly 'email'.

This commit opens this fixed naming demand: Every field name containing the word email will be validated for email format.
Clean up spelling and apostrophe for English
Update clipboard test for spelling fixes