Temporal traces for uriParam tests
Merge branch 'develop' into feature/570_filters_for_entity_type
Merge branch 'develop' into feature/570_filters_for_entity_type
removed two LM_Ms used for testing exclamation mark and colon in URI params
Added a URI parameter 'type' for GET /v1/contextEntities
CHANGES_NEXT_RELEASE
Starting to implement the exist and not-exist
�type => entity::type
Update CHANGES_NEXT_RELEASE
Merge pull request #578 from telefonicaid/task/570_uriParam_type

Added a URI parameter 'type' for GET /v1/contextEntities
merging with feature branch
moved the check of URI param 'empty' to general place in RestService. Fixed a few 'present'
functional test, pending mongo implementation
ADD stub for "FIWARE::Filter::Existence" scope unit test at mongoBackend
ADD entity type existence scope implementaation at mongoBackend
REFACTOR scope procesing in query request at mongoBackend
CLEAN obsolete comments
parsing scope:operator for JSON and XML
standard op added to 'type empty' func test
Added json tests for standard op with empty-type-filter