Updated proto file
Removed GroupBy and GroupedMapReduce
Added new functions
Fixed test
Fixed query printing, still does not support backtraces
Updated GroupedMapReduce tests
Changed connection arguments to use ConnectOpts instead of using
a map
Updated examples in README
Bumped version to v0.2 (RethinkDB v1.12)
Updated werkcer.yml to use mies box again
Merge branch 'release/v0.2'
Merge branch 'master' of github.com:dancannon/gorethink

Conflicts:
	README.md