Noop repated delete device inbox calls from /sync

Support registration & login with phone number

This file post-dates OM

looks like the upsert function was accidentally sending sql logging to the
general logger. We already log the sql in `txn.execute`.

and replace requestEmailToken where we meant requestMsisdnToken

Plus a couple of other minor fixes

https://docs.google.com/document/d/1-6ZSSW5YvCGhVFDyD2QExAUAdpCWjccvJT5xiyTTG2Y/edit#

Select distinct devices from DB

Otherwise we might pull out tonnes of duplicate user_ids and this can
make synapse sad.

and support binding them with the bind_msisdn param

Fix device list update to not constantly resync

Clobber old device list stream entries

defer.returnValue doth not maketh a generator: it would need a
yield to be a generator, and this doesn't need a yield.

Prepare a script for Jenkins to run sytest via dendron+haproxy