As a support for solving https://issues.jboss.org/browse/ORG-2245 I'm adding a new preprocessor that supports date range checks and also an improved version of ValuesCollectingPreprocessor that is now able to do deep copying of data while collecting.
Merged master change
Merge pull request #32 from searchisko/ORG-2245

Supporting changes for https://issues.jboss.org/browse/ORG-2245