Bump to 2.0.20
Bump to 2.0.20

tswayne/rethinkdbdash,neumino/rethinkdbdash,abhishekgahlot/rethinkdbdash,kulbirsaini/rethinkdbdash,mbroadst/rethinkdbdash,beni55/rethinkdbdash,adammcarth/rethinkdbdash,mbroadst/rethunk