check if soledad is working

the current problem on bitmask.net is that signing in + login works, but syncing soledad throws an error for new users (#5213 (closed))

i think the only way to check if soledad is working is to write a script that

• create (test-)user
• automated test mails to that user (~1 mail a day or so)
• login
• sync soledad
• check for errors

drebs, what do you think ?

(from redmine: created on 2014-03-03, closed on 2014-03-13, relates #5213 (closed), relates #6487)