FIX some minor bugs in testcases
add sonar plugin and reconfigure cobertura plugin
remove unneeded sonar config
FIX json management by TCs
Merge branch 'release/2.2.0' into develop
updating poms for 2.3.0-SNAPSHOT development
upgrade product version
REFACTOR Disable printing requests
FIX metadatas and attributes management due to new json representation; ADD wait time before productInstance request
Merge branch 'QA/json_representations' into QA/delete_node
FIX json in metadata - new resource
Merge pull request #99 from jframos/QA/json_representations

Qa/json representations
Merge branch 'develop' of github.com:telefonicaid/fiware-sdc into QA/delete_node
ADD Delete-Node resource validation
REFACTOR Add comments and delete strange characters
REFACTOR license
REFACTOR Import only used methods by terrain files from commons.terrain_steps
trying to synchronize master with develop
trying to synchronize master with develop
trying to synchronize master with develop