Tests: add cli argument to mock kraken
Jormun: add test with mock chaos
Disruption: corrections after review
Disruption: add a last_rt_data_loaded field

to be able to now the date of the last reload of data due to rt, add a
field with the datetime of the last rt data integration.

the field is not serialized (I don't see the point)
Merge pull request #18 from antoine-de/complex_inte_test

Complex inte test