Add upcase/downcase
Update ql2.desc
Add r.object
Merge takes a function + clean broken tests
Remove cacheSize, increase timeout (see rethinkdb#2170, fix tests
Remove groupBy/groupedMapReduce
Remove aggregator r.count/r.avg/r.sum
Add avg/sum/min/max
Add groupFormat + add backtraces tests for 1.12
Remove groupBy
Update for RethinkDB 1.12