Merge pull request #203 from marcesher/master

Fix validation error; add metrics for stream ops
Merge pull request #204 from marcesher/master

Redact authentication details from logging on startup
Merge pull request #205 from marcesher/master

Enable 'allowDiskUse' for aggregations. Without this, errors ensue
Merge pull request #206 from marcesher/master

v1.1.2 final
Merge branch 'master' of github.com:cfpb/qu