XD-945 Adding a beginning of the HDFS store module
XD-907: Add aggregate counter year resolution
XD-957 Update SI Dependency - 4.0.0.BUILD-SNAPSHOT

Mainly just import changes and a method name change on
the ChannelResolver.
XD-961: Fix XML serialization of streams
XD-962: added copylib dependency to test
XD-919 removed json param from twittersearch module
XD-945 Formatting, adding JavaDocs where missing
Fix generics warnings
Merge remote-tracking branch 'trisberg/XD-945'
XD-945 remove log4j.properties per code review