add RoomLight msg in jsk_robot_startup

[k-okada]

fixed version of #1330 ?

[k-okada]

not sure why indigo fails...

  _______________________________________________________________________________
  Errors << jsk_nao_startup:cmake /github/home/ros/ws_jsk_robot/logs/jsk_nao_startup/build.cmake.000.log
  -- set EUSDIR to /opt/ros/indigo/share/euslisp/jskeus/eus
  -- set ARCHDIR to Linux64
  CMake Error at /github/home/ros/ws_jsk_robot/devel/share/jsk_robot_startup/cmake/jsk_robot_startupConfig.cmake:141 (message):
    Project 'jsk_nao_startup' tried to find library 'jsk_robot_startup'.  The
    library is neither a target nor built/installed properly.  Did you compile
    project 'jsk_robot_startup'? Did you find_package() it before the
    subdirectory containing its code is included?
  Call Stack (most recent call first):
    /opt/ros/indigo/share/roseus/cmake/roseus.cmake:93 (find_package)
    /opt/ros/indigo/share/roseus/cmake/roseus.cmake:174 (generate_all_roseus_messages)
    /opt/ros/indigo/share/roseus/cmake/roseusConfig.cmake:190 (include)
    /opt/ros/indigo/share/catkin/cmake/catkinConfig.cmake:76 (find_package)
    CMakeLists.txt:7 (find_package)

[knorth55]

it seems jsk_nao_startup tried to generate euslisp message in jsk_robot_startup, but jsk_robot_startup is not build before jsk_nao_startup.
jsk_robot_startup is set in run_depend in jsk_nao_startup, but should it be build_depend?