Merge pull request #77 from ess-dmsc/bump_version

bumping version

Author: kmurica

streaming_data_types/_version.py

@@ -1,4 +1,4 @@
 # Version is not directly defined in __init__ because that causes all
 # run time dependencies to become build-time dependencies when it is
 # imported in setup.py
-version = "0.19.0"
+version = "0.20.0"