Added tests for Mongo 3.4 against Ubuntu 14.04 and 12.04

.travis.yml

@@ -3,6 +3,10 @@
 
 sudo: required
 env:
+  - >
+    DISTRIBUTION=ubuntu-upstart
+    DIST_VERSION=14.04
+    MONGODB_VERSION=3.4
   - >
     DISTRIBUTION=ubuntu-upstart
     DIST_VERSION=14.04
@@ -15,6 +19,10 @@ env:
     DISTRIBUTION=ubuntu-upstart
     DIST_VERSION=14.04
     MONGODB_VERSION=2.6
+  - >
+    DISTRIBUTION=ubuntu-upstart
+    DIST_VERSION=12.04-builded
+    MONGODB_VERSION=3.4
   - >
     DISTRIBUTION=ubuntu-upstart
     DIST_VERSION=12.04-builded
@@ -82,7 +90,7 @@ before_install:
     sudo docker build --rm=true --file=tests/Dockerfile.${DISTRIBUTION}_${DIST_VERSION}
     --tag ${DISTRIBUTION}:${DIST_VERSION} tests; else sudo docker pull ${DISTRIBUTION}:${DIST_VERSION}; fi
   - sudo ln -s ${PWD} /etc/ansible/roles/greendayonfire.mongodb
-  
+
 script:
   # Test 1
   - >