Updated kalibro_gatekeeper_client to version 0.1.0.

signed-off-by: Rafael Manzo <rr.manzo@gmail.com>
More tests for aggregated_value method.

signed-off-by: Rafael Manzo <rr.manzo@gmail.com>
Removed unused mock for average_value

Signed off by: Alessandro Palmeira <alessandro.palmeira@gmail.com>
Minor fix on describe clause
Using MetricConfiguration factory instead of generating mock objects
Ranges Factory
Defining subject of metric_result_spec
Added another traits on range factory
Improved metric result tests
range method.
MetricResult has_grade? and grade methods

Signed off by: Alessandro Palmeira <alessandro.palmeira@gmail.com>
Started ModuleResult, but it depends on MetricResult as well
WIP