- General style(9) cleanup -- white space, braces, line wraps, etc.
- Annotate a lack of synchronization the global route cache if the input
routine is invoked with parallelism.
- Remove unused debugging code.
Kernel Appletalk protocol support
both CAP and netatalk can make use of this..
still needs some owrk but it seemd the right tiime to commit it
so other can experiment.