Leap-mx

o Fix return codes for check recipient access. Fixes 3356.
o Improve logging in general and support possible unicode parameters
without breaking.
o Try to figure out the encoding of an email first by looking into
its header, if that fails then by using chardet.
o Support more than utf8 encodings for emails.
o Add support for receiving mailing list mails.
o Use the uuid that alias_resolver returned and postfix added to the
mail headers, which improves performance.
o Look for public keys based on uuid instead of mail address.

o Keep file watcher in memory to prevent losing file events.
o Properly save the incoming mail as a doc in couch.
o Properly parse mail address of the form "Name <userdomain>". Fixes 3653.

o Migrate mx functions to work on the new couchdb structure and
views. Fixes 3502.
o Update to new soledad package scheme (common, client and
server). Closes 3487.
o Add versioneer.

o Give a return code for bare usernames too. Closes: 3405
o Adapt to Soledad 0.2.1 API.
o Fix broken pip install
o Fix alias lookup return codes. Closes: 3356
o Use the new API to import a new ascii armored public key. Fixes
3352.
o Add "incoming" index for ease of listing new email.
o Add dependency for leap.keymanager.
o Adapt to the new keymanager API. Closes 3397.