introducing importer/plaintext/skip_extracted transformer required for plaintext import caching
#354 removing obsolete transformers/export/person transformer along with tests
#354 removing obsolete transformers/export/inferenced_document_without_imported_data transformer along with tests
#354 removing obsolete transformers/export/identifier/referenceddatasets transformer along with tests
#354 removing obsolete transformers/export/identifier/documents transformer along with tests
#354 removing obsolete transformers/export/document transformer along with tests
replacing redundant transformers/ingest/pmc/citations with already existing transformers/importer/documentmetadata/idextractor
updating default job.properties
adding missing "confidenceLevel" field
introducing deploy.info file for module icm-iis-transformers