ngsi9 subscription conv ops
changes raised during PR review
Merge pull request #137 from telefonicaid/feature/convop_ngsi9_subscriptions

ngsi9 subscription conv ops
Fixed an error in xmlCheck and the order of xml elements in ngsi9.subscribeContextAvailabilityRequest.withSubId.valid.xml
merged with develop
Merge pull request #138 from telefonicaid/bug/xmlCheck

Bug/xml check
Conv ops ngsi10 AttributeValueInstance
convopTest
Incomplete unit tests for delete and put
more unit tests
FIX proper processing of APPEND to create new entities
fixed a few unit tests after the AOPPEND change in mongoUpdataContext
Fixed unit test for mapPutIndividualContextEntity
FIX mongo* unit tests after last commit
Merge branch 'feature/convop_attribute_value_instance' of github.com:telefonicaid/fiware-orion into feature/convop_attribute_value_instance
A few harness tests fixed
more harness tests fixed
FIX test harness after using properly APPEND for creating entities
Merge branch 'feature/convop_attribute_value_instance' of github.com:telefonicaid/fiware-orion into feature/convop_attribute_value_instance
Last two harness tests