Make the new "hacking" version happy

Docker-DCO-1.1-Signed-off-by: Olivier Gambier <olivier@docker.com> (github: dmp42)
Loose test dependencies

Also add six (needed to lake hacking happy)

Docker-DCO-1.1-Signed-off-by: Olivier Gambier <olivier@docker.com> (github: dmp42)
Update main dependencies

Docker-DCO-1.1-Signed-off-by: Olivier Gambier <olivier@docker.com> (github: dmp42)
Cleanup

- moving metadata into __init__ with the rest
- removed useless and other cosmetics in tox.ini
- added pypy

Docker-DCO-1.1-Signed-off-by: Olivier Gambier <olivier@docker.com> (github: dmp42)
Cleanup

- trivial cleanup
- unified syntax for version comparison
- use metadata from init

Docker-DCO-1.1-Signed-off-by: Olivier Gambier <olivier@docker.com> (github: dmp42)
DEPS=loose env var to loosen deps

Docker-DCO-1.1-Signed-off-by: Olivier Gambier <olivier@docker.com> (github: dmp42)
Alphabetic order for deps

Docker-DCO-1.1-Signed-off-by: Olivier Gambier <olivier@docker.com> (github: dmp42)
Making new hacking happy

Docker-DCO-1.1-Signed-off-by: Olivier Gambier <olivier@docker.com> (github: dmp42)
Cleanup tox file

Add env variables (and documentation) instead of hardcoded (dmp only) paths

Docker-DCO-1.1-Signed-off-by: Olivier Gambier <olivier@docker.com> (github: dmp42)
Introduce loose deps

Same as in core, introduce DEPS=loose, which allows for loose dependencies.

Docker-DCO-1.1-Signed-off-by: Olivier Gambier <olivier@docker.com> (github: dmp42)
Fix breakage introduced by hacking cleanup

Docker-DCO-1.1-Signed-off-by: Olivier Gambier <olivier@docker.com> (github: dmp42)
Enforce testing core as well on travis

Docker-DCO-1.1-Signed-off-by: Olivier Gambier <olivier@docker.com> (github: dmp42)
Harmonize gunicorn ways to launch and cleanup

I'm deprecating the direct gunicorn launch stance, which only increases the confusion (we already have two ways to launch, and there is zero reason now ro not use docker-registry since @wking introduced generics opts.

Docker-DCO-1.1-Signed-off-by: Olivier Gambier <olivier@docker.com> (github: dmp42)
Documentation update

Started 0.9 changelog
Updated readme:
 * updated URLs
 * buried direct gunicorn launch
 * newrelic is now mentioned

Docker-DCO-1.1-Signed-off-by: Olivier Gambier <olivier@docker.com> (github: dmp42)
Fix travis build

Travis runs hacking (through flake) using 2.6 as well - which is not a good thing...

Docker-DCO-1.1-Signed-off-by: Olivier Gambier <olivier@docker.com> (github: dmp42)
Attempted travis build fixing

Docker-DCO-1.1-Signed-off-by: Olivier Gambier <olivier@docker.com> (github: dmp42)
Merge pull request #525 from docker/next

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