Don't send HTML on post save.

fixes #3956
- adjusts post serialiser to not send HTML content
Merge pull request #3957 from halfdan/3956-we-dont-like-html

Don't send HTML on post save.
Adds (Never) for users who haven't been seen

Closes #3970
Remove form focus halo

No issue

- Removed the blue halo from around focused form elements
- Slightly refactored the forms to target less text inputs and have cleaner syntax
Merge pull request #3971 from javorszky/iss3970

Adds (Never) for users who haven't been seen
Merge pull request #3972 from PaulAdamDavis/form-refactor

Remove form focus halo
Replaces sendmail with direct

Closes #1538
* rips out sendmail
* adds direct
* updates nodemailer to 0.7.1
* changes unit tests for mail
* changed integration tests for mail
* adds mail api tests