Added kalibro_client gem
MezuroConfiguration using KalibroClient class
MetricConfigurations inherits from KalibroClient class
Started the refactoring to incorporate kalibro client

Signed off by: Diego Araújo <diegoamc90@gmail.com>
Finished tests for reading groups controller

Signed off by: Daniel Alves <danpaulalves@gmail.com>
Signed off by: Diego Araújo <diegoamc90@gmail.com>
Removed expected call to validator on project spec
Started the fixes for reading group tests