Pass testsuite and pair functionality with service

[dangra]

Alternative to #36 in order to fix #35

/cc @torymur

List of compromises:

• JobQ doesn't support multiple botgroups per project anymore
• /jobs/ endpoint doesn't support scanning anymore and now relies on /jobq/NNN/list which return jobs in reverse order and doesn't mix jobs from multiples states unless state param is used
• job auth token is only returned when job is moved from pending to running queue, that's when calling /jobq/startjob. The token is not stored anymore as job metadata.
• HubstorageClient.get_jobs() changed it signature and doesn't accept numerical spiderid as first argument anymore, only spider by its name.

$ py.test -x --ff
======================================== test session starts ====================================
platform darwin -- Python 2.7.10, pytest-2.8.2, py-1.4.30, pluggy-0.3.1
run-last-failure: run all (no recorded failures)
rootdir: /Users/daniel/src/python-hubstorage, inifile:
plugins: capturelog-0.7
collected 53 items

tests/test_activity.py ...
tests/test_batchuploader.py ....
tests/test_client.py ......
tests/test_collections.py ..
tests/test_frontier.py ....
tests/test_jobq.py sx...............
tests/test_jobsmeta.py ...
tests/test_project.py ...........
tests/test_system.py ...

=============== 51 passed, 1 skipped, 1 xfailed, 1 pytest-warnings in 173.62 seconds ============

[dangra]

@torymur please review, any feedback is welcome.

[torymur]

@dangra I see what you meant. Ok, thanks! LGTM

[dangra]

Thanks @torymur