add support for not filter and add test
review comments
simplify code a bit
Merge pull request #804 from metamx/notdimfilter-support

Add support for NotDimFilter with FilteredAggregator
more logging for potential NPE because of segment unmapping
update docs
[maven-release-plugin] prepare release druid-0.6.160
[maven-release-plugin] prepare for next development iteration
provide a little more involved example
make tests pass with Java 7 as well
fix search with same value in multiple columns
Merge pull request #813 from metamx/better-example-and-test

provide a little more involved example
fix random lowercasing in test
Merge branch 'master' of github.com:metamx/druid into fix-search
Merge pull request #816 from metamx/fix-search

fix search with same value in multiple columns
Merge pull request #7 from metamx/master

merge to local master