add support for size based log rotation
Merge pull request #344 from jespada/sizebased-logrotation

add support for size based log rotation
streams/batch: batch up events in space and time.

Especially useful for folks having performance issues with IO; for
instance, the librato metrics client can accept a vector of events and
will make a single HTTP request for the entire vector as a batch.
Merge branch 'master' of github.com:aphyr/riemann
Fix ns collisions for streams.batch
Optimize query for host and service

If a query is for exactly one host and source, do the lookup directly against
the map.
Return the correct value on no explicit match
Simplify because clojure
Deal with edge cases
Merge pull request #345 from eric/optimize-host-and-service-lookup

Optimize query for host and service
doc: clarify coalesce dt parameter
doc: add coalesce usage example
Merge pull request #349 from mfournier/coalesce-docstring

Coalesce docstring
sreduce: fix docstring.

Docstring said maximum, but computed sum. Now it computes sum.
Events from TCP server include timestamps always.
Riemann.config: console logging