Fixes all updates since bcwaldon sketched the original, with cleanup and
into an acutal working state. The commit log follows:
fix pb reference and remove unused file post rebase
unbreak the migrate folder
correctly detect node IDs
fix snapshotting
Fix previous broken snapshot
Add raft log entries to the translation; fix test for all timezones. (Still in progress, but passing)
Fix etcd:join and etcd:remove
print more data when dumping the log
Cleanup based on yichengq's comments
more comments
Fix the commited index based on the snapshot, if one exists
detect nodeIDs from snapshot
add initial tool documentation and match the semantics in the build script and main
formalize migration doc
rename function and clarify docs
fix nil pointer
fix the record conversion test
add migration to test suite and fix govet
Jonathan Boulle