orocos_toolchain: renamed and reformatted the catkin env-hook for orocos_toolchain

Signed-off-by: Johannes Meyer <johannes@intermodalics.eu>
orocos_toolchain: fixed LUA_PATH variable in orocos_toolchain env-hook

Signed-off-by: Johannes Meyer <johannes@intermodalics.eu>
Merge branch 'catkin' of https://github.com/meyerj/orocos_toolchain into HEAD