use rosdep-install.sh for indigo users
c.f.: we used this script when rosbuild->catkin transition period, that catkin works incorrectly with old manifest.xml package. Now we use rosdep-install.sh, or users may manually install python-* codes.
add travistime{start/end} around catkin_test_results/show cache
rosdep-install.shfor indigo users c.f.: we used this script whenrosbuild->catkintransition period, that catkin works incorrectly with oldmanifest.xmlpackage. Now we userosdep-install.sh, or users may manually installpython-*codes.