MetricResult with NaN uses the agregated_value

Signed-off by: Renan Fichberg <rfichberg@gmail.com>
Signed-off by: Diego Araújo <diegoamc90@gmail.com>
Predicates folder? and file? created for ModuleResult entity
Hash conversion support for classes that inherit from entities

Signed-off By: Fellipe Souto <fllsouto@gmail.com>
Signed-off By: Renan Fichberg <rfichberg@gmail.com>
Updated activesupport version

Signed-off By: Fellipe Souto <fllsouto@gmail.com>
Signed-off By: Renan Fichberg <rfichberg@gmail.com>
FactoryGirl updated

Signed-off By: Fellipe Souto <fllsouto@gmail.com>
Signed-off By: Renan Fichberg <rfichberg@gmail.com>
Version bump