Disable testing of python3 until later.

Author: stevemac007

.travis.yml

@@ -7,7 +7,7 @@ python:
 #  - "3.4"
 #  - "3.5"
 #  - "3.5-dev" # 3.5 development branch
-  - "3.6"
+#  - "3.6"
 #  - "3.6-dev" # 3.6 development branch
 #  - "3.7-dev" # 3.7 development branch
 #  - "nightly" # currently points to 3.7-dev
@@ -19,3 +19,8 @@ env:
   - PYTHONPATH=lambda
 # command to run tests
 script: nosetests --with-xunit  --with-coverage --cover-package=lambda --cover-erase
+
+notifications:
+  slack:
+    on_success: always
+    on_failure: always