Merge pull request ROBOTIS-GIT#24 from ROBOTIS-GIT/ros2-devel

revise travis

Author: ROBOTIS-Will

.travis.yml

@@ -9,14 +9,15 @@ notifications:
     on_success: change
     on_failure: always
     recipients:
-      - [email protected]
-      - [email protected]
+      - [email protected]
 
 branches:
   only:
     - ros2
     - ros2-devel
     - dashing-devel
+    - eloquent-devel
+    - foxy-devel
 
 install:
   - git clone --quiet --depth 1 https://github.com/ROBOTIS-GIT/ros2ci.git .ros2ci