Feedback controller plus form.
Added feedback to top menu.
Renamed Background to About to make it more inviting.
Fixed grammar of error message.
Merge branch 'master' of https://github.com/fdlk/molgenis into feature/feedback
Show thanks on submit.
document methods
show admin emails
send actual mail
formatted using molgenis style
fixed email and name if user is logged in
added unit tests
test sending of mail
Add molgenis app.name to subject.
Moved feedback to top level of menu bar.
add jquery validation to the form
Add POJO for the FeedbackForm.
Specify default for subject in FeedbackForm bean.
Use user's registered name and email address as initial values, but
allow user to change them for this form.
Add sender name to mail body.
INFO log the message

Improved formatting for the Feedback message.
Back to synchronous mail sender.
Added error handling.