Fixed the outdated binaries generation pipeline

Now the first two tutorials for roslisp should work perfectly, especially the [Organizing Files](http://wiki.ros.org/roslisp/Tutorials/OrganizingFiles) one
I am just stating my experience with a lot of other CMake code. Not exposing the target name to the user makes it much more difficult for people to e.g. adding a simple target dependency. Lots of code in the past has been changed to actually let the user provide the target name. I guess it depends on personal opinion.