Merge pull request #44 in ASAPO/asapo from feature_file-based-pipelines to develop

* commit 'ac327101': (23 commits)
  example for a pipeline with Python
  fix memory leak, added integration test
  producer python api for send_data ready
  producer python api for send_file ready
  callback c/python
  fix paths
  start work at python libs for producer
  fix windows test
  refactor example
  add tests, fix bug
  injest mode for receiver
  update test
  injest mode for producer
  update docker files for python api
  start working at ingest modes
  fix windows test
  authorizer accepts tokens
  fix windows test
  added test for two streams
  fix windows tests
  ...