Update .travis.yml (#129)

Author: chris-smith

.travis.yml

@@ -1,4 +1,4 @@
-dist: trusty
+dist: xenial
 sudo: required
 compiler:
   - gcc
@@ -7,9 +7,10 @@ node_js:
   - "6"
   - "7"
   - "8"
+  - "10"
 env:
   global:
-    - ROS_DISTRO=indigo
+    - ROS_DISTRO=kinetic
     - ROS_CI_DESKTOP="`lsb_release -cs`"  # e.g. [precise|trusty|...]
     - CI_SOURCE_PATH=$(pwd)
     - ROSINSTALL_FILE=$CI_SOURCE_PATH/dependencies.rosinstall
@@ -26,9 +27,9 @@ branches:
 before_install:
   - sudo apt-get install -y dpkg  # to upgrade to dpkg >= 1.17.5ubuntu5.8, which fixes https://bugs.launchpad.net/ubuntu/+source/dpkg/+bug/1730627
   - sudo sh -c "echo \"deb http://packages.ros.org/ros/ubuntu $ROS_CI_DESKTOP main\" > /etc/apt/sources.list.d/ros-latest.list"
-  - sudo apt-key adv --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-key 421C365BD9FF1F717815A3895523BAEEB01FA116
+  - sudo apt-key adv --keyserver 'hkp://keyserver.ubuntu.com:80' --recv-key C1CF6E31E6BADE8868B172B4F42ED6FBAB17C654
   - sudo apt-get update -qq
-  - sudo apt-get install -y python-catkin-pkg python-rosdep python-wstool ros-$ROS_DISTRO-catkin
+  - sudo apt-get install -y python-catkin-pkg python-rosdep python-wstool ros-$ROS_DISTRO-ros-base
   - source /opt/ros/$ROS_DISTRO/setup.bash
   # Prepare rosdep to install dependencies.
   - sudo rosdep init