Update doc/fuerte/tu-darmstadt-ros-pkg.rosinstall

added stack hector_navigation
Update doc/electric/tu-darmstadt-ros-pkg.rosinstall

added stack hector_navigation
Update doc/groovy/tu-darmstadt-ros-pkg.rosinstall

added stack hector_navigation
Merge pull request #405 from meyerj/master

added stack hector_navigation in tu-darmstadt-ros-pkg.rosinstall for electric/fuerte/groovy