Most of the functionality in this package has been obsoleted by equivalent
symbols in states/statemgr. We're keeping this package around for the
moment mainly just to house the type aliases in state.go.
The tests in here no longer work because they are written against the old
APIs. We will eventually remove the components these are testing too, but
we're keeping them around for the moment so that we don't break the build
for some leftover callers that are still depending on these.
Gove LockInfo a Marshal method for easy serialization, and a String
method for more readable output.
Have the state.Locker implementations use LockError when possible to
return LockInfo and an error.
Martin Atkins