NOJIRA marathon 0.14.0 support

[dilyn]

No description provided.

[vito-c]

+1

[chrishaessig]

LGTM

[solarkennedy]

Can you also expand the .travis.yaml to include marathon .14 support?

It looks like all the tests are passing... my best guess here is that we are pulling off of the mesossphere repos and the new version of mesos isn't compatible with the versions of marathon we are testing against. I'll come up with a fix for that and have you merge/rebase master.

[solarkennedy]

Ok itests are fixed in master, please merge/rebase and let's see the results.

Also please add the new entry for marathon .14. At the same time please remove the next oldest version (0.8.1?) so we don't grow the matrix.

[lcjlcj]

I ran into this because marathon 0.14.0 added ipAddress in MarathonApp response. Mesos 0.26.0, marathon 0.14.0. Marathon-python 0.7.5.

File "/usr/local/lib/python2.7/dist-packages/marathon/client.py", line 104, in create_app
return self._parse_response(response, MarathonApp)
File "/usr/local/lib/python2.7/dist-packages/marathon/client.py", line 47, in _parse_response
return clazz.from_json(target)
File "/usr/local/lib/python2.7/dist-packages/marathon/models/base.py", line 34, in from_json
return cls(**{to_snake_case(k): v for k,v in attributes.items()})
TypeError: init() got an unexpected keyword argument 'ip_address'

[solarkennedy]

Obsoleted by #85