added config for Travis CI

.travis.yml

@@ -0,0 +1,28 @@
+# Travis Continuous Integration Configuration File For ROS Control Projects
+sudo: required
+dist: trusty
+language: generic
+
+notifications:
+  email:
+    recipients:
+      - enrique.fernandez.perdomo@gmail.com
+      - bence.magyar.robotics@gmail.com
+      - gennaro.raiola@gmail.com
+    on_success: change #[always|never|change] # default: change
+    on_failure: change #[always|never|change] # default: always
+
+env:
+  global:
+    - UPSTREAM_WORKSPACE=https://raw.github.com/ros-controls/ros_control/kinetic-devel/ros_control.rosinstall
+    - ROS_PARALLEL_TEST_JOBS=-j1
+  matrix:
+    - ROS_DISTRO=kinetic ROS_REPO=ros
+    - ROS_DISTRO=kinetic ROS_REPO=ros-shadow-fixed
+    - ROS_DISTRO=lunar   ROS_REPO=ros
+    - ROS_DISTRO=lunar   ROS_REPO=ros-shadow-fixed
+
+install:
+  - git clone https://github.com/ros-industrial/industrial_ci.git .ci_config
+script:
+- .ci_config/travis.sh