Update mpath to v0.5.1 (vulnerability fix) (#85)
Update mpath to v0.5.1 (vulnerability fix) (#85)

Fixes https://www.npmjs.com/advisories/779
There's one breaking change but it should not affect this lib:
https://github.com/aheckmann/mpath/blob/0.5.1/History.md
joegoldbeck/mongoose-encryption