FIX some minor bugs in testcases
add jackson JSON parser
fix call to chefnode
Merge branch 'develop' into jersey_jackson

* develop:
  doc restyling
  doc restyling
fix: remove null fields
add logs to delete node methods
fix unit test
fix: don't write empty list in json
Merge pull request #96 from alberts-tid/bug/CLAUDIA-4225

add logs to delete node methods
fix, line size to 120chars
Merge pull request #97 from jesuspg/jersey_jackson

Jersey jackson
FIX json management by TCs
upgrade product release
updating poms for 2.2.0 release
updating poms for 2.2.0 release
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