First version of multilabels with ensembles
Bug fixing: retrieving models info when resume starts in ensembles' creation
Bug fixing: evaluations for --dataset and --number-of-models > 1

- the evaluation did not select the 20% hold out instances to test
  the generated ensemble
First version of multilabels with ensembles
Bug fixing: retrieving models info when resume starts in ensembles' creation
Adding --ensembles and --ensemble-tag to retrieve previously created ensembles
Adding changes to use the 0.8.1 version of the bindings and PredictServer
Merge conflicts
Docs and new tests for multi-label ensembles
Cleaning with pep8 and pylint
Typos and function refactoring
Solving merge conflicts and updating version to 0.4.2
Using BIGML_DOMAIN to point dashboard urls to specific servers
Changing history log and updating to 0.5.0 version