Make unit test compatible with mocha async-only
Hack to make findOneAndUpdate with __v work with mongodb 2.2
release 3.8.13
Now working on 3.8.14
Fix #2002: get rid of bad hack for converting MongooseArray -> string
Fix #2035: slightly nasty hack to work around toObject messiness
Merge branch '3.8.x'

Conflicts:
	package.json