Then what if we support the following new but thin, tools for people who want to use catkin_make instead of full-on-catkin but don't like having to jump around their filesystem in the standard CMake workflow. Note I use the current catkin_make script in `catkin init` to illustrate what that should do. Also note that this preserves what are basically pass-through calls to cmake and make 

`catkin init`:

    mkdir -p .catkin/build .catkin/install .catkin/devel

    catkin_make  --build .catkin/build --src . --devel .catkin/build

`catkin cmake [cmake_args]`:

    cd /path/to/ws/.catkin/build && cmake /path/to/ws $cmake_args

`catkin make [make_args]`:

    cd /path/to/ws/.catkin/build && make $make_args