Removing old code related to Protocol Buffers
Long time ago, we used Protocol Buffers encapsulated in sequence files as the format for data stores. This cleanup is removing code related to this functionality.
making AvroSchemaGenerator immune to empty argument
Removing usage of working_dir from Java workflow node.
#1133 dropping useless workfing_dir creation for java nodes
#919 renaming DocumentToResearchInitiative to DocumentToConceptId and DocumentToResearchInitiatives to DocumentToConceptIds
Handling single quote in namespace definition
Removing datastore_tools.py script since it has been moved to Github
Pretty printing of JSON dump
Pretty printing JSON representation of Avro records in case of error in TestingConsumer