Revert "first commit"

This reverts commit e3cdafdb680d7de67352e6451e5b0bf73cca94a2.
Add README
Merge branch 'birthday' of github.com:Clever/oplog-replay into birthday
Merge branch 'master' into birthday

Conflicts:
	Makefile
	bson/reader.go
	main.go
	oplog.rs.bson
Merge branch 'birthday' into birthday-concurrent