SAMZA-351; rename environment.gradle to customize.gradle and move it to the bottom of the list
SAMZA-225: add a Spark Streaming comparison
SAMZA-352: Scala 2.9.2 build broken after SAMZA-337
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/incubator-samza
SAMZA-245; improve system consumers performance
SAMZA-123: Move topic partition grouping to the AM and generalize
SAMZA-202; support java 8 for runtime and compile time
SAMZA-359; refactor grouper package names
SAMZA-357; default to utf8 to fix rat task failures
SAMZA-109; make task.opts easier to use.
SAMZA-360; check-all.sh sets java home for gradle correctly now
SAMZA-349: add Timer in Metrics
SAMZA-350; allow dynamic log level toggling
SAMZA-365; fixing javadocs that break in java8
SAMZA-366; fix javadocs in jmx appender
SAMZA-251: add metrics for choose/process/window/commit/send time
SAMZA-372; fix lesscss to use proper buildDir
SAMZA-372-2; follow on patch to fix lesscss
SAMZA-373; fix java 8 javadoc compilation error
RocksDb intial commit