This is mostly a matter of moving some files, changing package names,
changing some imports, and changing some type references.
We duplicate the odd constant & global var, and the intmac/macint
functions, since neither 'router' or 'mesh' nor, really,' common' are
a natural home for them.
* the comment "don't make the caller wait" applies to both branches
of that if clause, and having it on one branch implies the other
does make the caller wait
* there's no reason for DeniedBy to start with a capital: it's a
method on a private struct and it's not part of an interface.
tidy Address helper functions,
make ordering of members consistent in allocate and claim,
make linter happier,
remove some unused items, and
update some comments
Using the Ring CRDT and Weave gossip, provides an interface
for the weave script to allocate IP addresses in `weave run`,
`weave start` and `weave expose`.
See docs/ipam.md for implementation details, and site/features.md
for user-visible changes.
Matthias Radestock