In order to do this from CI, please create a secret variable
(at i.e. https://0xacab.org/varac/soledad/settings/ci_cd)
called PYTEST_OPTS and use this example:

    --benchmark-autosave --benchmark-storage="elasticsearch+https://USER:PASSWORD@moose.leap.se:9200"

On debian stable the `python3-tox` and `python-tox` packages
come with a really old version of `pip` and `setup_tools`.
This makes unusable PEP496 that comes handy when dependencies
are "py-version-related".
As a workaround we can "inject" an upgraded version of `pip` just
before running `tox`.

add coverage reports too.

(hereby we swear not to write stupid tests just because it feels good to
have an increased coverage metric).

- Resolves: #8416

Updating the profile-sync script to the latest deferred-based sync.

- Added a couple of options to have finer control about what output to
  get.
- Add support for the plop profiler https://pypi.python.org/pypi/plop/
- To get meaningful plop profiles, make sure to disable the system stats
  collection, like this::

  ./profile-sync.py --no-stats --plop -b /tmp/syncdata/ -p sikret user@provider

A good practice for this is having a pre-seeded soledad account
(currently you have to do that through the wizard, a cli will be very
nice to have in the coming future) with a known amount of data (for
instance, sending some mails with known payload weight).

It is VERY IMPORTANT that you *NEVER* process the data in this account
(ie, do not ever log in with a mail client, for instance, since that
will alter the original documents).

In order to have comparable results, you should always run this sync
script in similar conditions. Ideally, on a machine with runlevel 1.

Also, make sure of deleting the contents in the folder if you are
not using a temporal dir.

implementing a generic plugin interface to allow other modules to react
to soledad syncs, receiving a list of document ids that they've
subscribed to.

- Resolves: #6996
- Releases: 0.7.1

* add examples and benchmarks
* remove autocommit mode, allow wal disabling
* lock initialization
* make api use async calls