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
Merge pull request #547 from paperculture/fix-en-spelling

Clean up spelling and apostrophe for English
New toolbar style.

This includes:

- Button label is now hidden by default. Shows as tooltip on hover.
- No "button"-look any more for toolbar buttons.
- Overall slimmer toolbar.
- New link, button and input focus style.
Put an insert element button between and above each element.

Before we had one button that always appends the element at the end of the list.
Now the user can choose where to add the element.