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Summary

Insert a meaningful description for this merge request here.  What is the
new/changed behavior? Which bug has been fixed? Are there related Issues?

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• All automated tests pass
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include/CMakeLists.txt

@@ -40,6 +40,8 @@ set(libcaosdb_INCL
     ${CMAKE_CURRENT_SOURCE_DIR}/caosdb/unary_rpc_handler.h
     ${CMAKE_CURRENT_SOURCE_DIR}/caosdb/utility.h
     ${CMAKE_CURRENT_SOURCE_DIR}/caosdb/file_transmission/register_file_upload_handler.h
+	# TODO this  file is still missing
+	# ${CMAKE_CURRENT_SOURCE_DIR}/caosdb/file_transmission/register_file_download_handler.h
     ${CMAKE_CURRENT_SOURCE_DIR}/caosdb/file_transmission/upload_request_handler.h
     ${CMAKE_CURRENT_SOURCE_DIR}/caosdb/file_transmission/download_request_handler.h
     ${CMAKE_CURRENT_SOURCE_DIR}/caosdb/file_transmission/file_writer.h