create release 0.12.1 (#1054)

Author: mfeurer

doc/progress.rst

@@ -9,7 +9,15 @@ Changelog
 0.12.1
 ~~~~~~
 
+* ADD #895/#1038: Measure runtimes of scikit-learn runs also for models which are parallelized
+  via the joblib.
+* DOC #1050: Refer to the webpage instead of the XML file in the main example.
+* DOC #1051: Document existing extensions to OpenML-Python besides the shipped scikit-learn
+  extension.
 * FIX #1035: Render class attributes and methods again.
+* FIX #1042: Fixes a rare concurrency issue with OpenML-Python and joblib which caused the joblib
+  worker pool to fail.
+* FIX #1053: Fixes a bug which could prevent importing the package in a docker container.
 
 0.12.0
 ~~~~~~

openml/__version__.py

@@ -3,4 +3,4 @@
 # License: BSD 3-Clause
 
 # The following line *must* be the last in the module, exactly as formatted:
-__version__ = "0.12.1dev"
+__version__ = "0.12.1"