Removed length and binary response in the fake remote service.

The real remote service in async library changed (binary response was
unused, thus also the message length became unnecessary). The fake
remote service (implemented in cmstestsuite) needs to account for
those changes. For the tests to continue working.
Added some files to the installation to fix cmstestsuite.
Mark TODO as such.
SS: missing import of Task.

I don't know how things managed to work, but definitely we want
to import Task if we use it (kind suggestion by pyflakes).
Add TODO.
Optimize dropping the whole database.
Sample config: use "python2" instead of "python" as process_cmdline.

"python2" is expected to be more common, since it is used in all
shebangs.
Unit tests for logservice.
Renamed RunTests to RunFunctionalTests.
Partial pep8 on cmstestsuite.
Running unit tests automatically.