Merge branch 'release-2.1.1' into develop
Remove API doc from README (#22)
Add error handler for exceptions that aren't dealt with (#26)
Add email log handler (#25)
Fix failing tests due to email handler being enabled
Add REST api example code (#24)
Make available on Internet (#27)
Use url_for to generate api call urls in javascript (#27)

Without using url_for the middleware isn't taken into account, resulting
in the wrong url and the api call failing.
Fix wrapping in DSSP output (#23)
Fix bug where clear submits the form (#28)
Bump version to 2.2.0
Update changelog
Merge branch 'release-2.2.0'