rethinkdb: switch to using native driver instead of rethinkdbdash; also this now only supports rethinkdb 2.1.1
rethinkdb: switch to using native driver instead of rethinkdbdash; also this now only supports rethinkdb 2.1.1

sagemathinc/smc,DrXyzzy/smc,tscholl2/smc,DrXyzzy/smc,DrXyzzy/smc,sagemathinc/smc,tscholl2/smc,sagemathinc/smc,sagemathinc/smc,tscholl2/smc,tscholl2/smc,DrXyzzy/smc,tscholl2/smc