.travis.yml: udpate to trusty

.travis.yml

@@ -1,8 +1,6 @@
-language:
-  - cpp
-  - python
-python:
-  - "2.7"
+sudo: required
+dist: trusty
+language: generic
 compiler:
   - gcc
 
@@ -12,18 +10,18 @@ branches:
     - develop
 
 install:
-  - sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu precise main" > /etc/apt/sources.list.d/ros-latest.list'
+  - sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu trusty main" > /etc/apt/sources.list.d/ros-latest.list'
   - wget http://packages.ros.org/ros.key -O - | sudo apt-key add -
   - sudo apt-get update -qq
-  - sudo apt-get install python-catkin-pkg python-rosdep ros-hydro-catkin -qq
+  - sudo apt-get install python-catkin-pkg python-rosdep ros-indigo-catkin -qq
   - sudo rosdep init
   - rosdep update 
   - mkdir -p /tmp/ws/src
   - ln -s `pwd` /tmp/ws/src/package
   - cd /tmp/ws
-  - rosdep install --from-paths src --ignore-src --rosdistro hydro -y
+  - rosdep install --from-paths src --ignore-src --rosdistro indigo -y
 
 script:
-  - source /opt/ros/hydro/setup.bash
+  - source /opt/ros/indigo/setup.bash
   - catkin_make
   - catkin_make install