app.mk: New "dummy" configuration
app.mk: New "dummy" configuration

`make run_dummy` will completely bypass ACCEPT, just for quick debug builds.

Also consider:
$ make run_dummy LLCARGS=-O0
for even dummier builds.

jck/accept,uwsampa/accept,uwsampa/accept,jck/accept,uwsampa/accept,jck/accept,jck/accept,uwsampa/accept