add long test per-commit build spec

Author: mambocab

build.yaml

@@ -20,6 +20,17 @@ schedules:
       exclude:
         - python: [3.4, 3.6]
 
+  commit_long_test:
+    schedule: per_commit
+    branches:
+      include: [/long-python.*/]
+    env_vars: |
+      EVENT_LOOP_MANAGER='libev'
+    matrix:
+      exclude:
+        - python: [3.4, 3.6]
+        - cassandra: ['2.0', '2.1', '3.0']
+
   commit_branches:
     schedule: per_commit
     branches: