update Changelog and ci jobs

.gitlab-ci.yml

@@ -9,7 +9,8 @@ python3.5:
     tags: [qlf-ci.inria.fr]
     script:
     - pip install tox
-    - tox -e py35 pep8
+    - tox -e py35
+    - tox -e pep8
 
 python3.6:
     image: python:3.6
@@ -17,7 +18,8 @@ python3.6:
     tags: [qlf-ci.inria.fr]
     script:
     - pip install tox
-    - tox -e py36 pep8
+    - tox -e py36
+    - tox -e pep8
 
 #### Entering th release zone
 pages:

CHANGELOG.md

+# 0.2.2
+
+- Support for timeseries of various metrics
+- pep8 fix
+- fix CI jobs to check the pep8
+
 # 0.2.1
 
 - catch up changelog