Merge pull request #268 from acz-icm/master

New filter, some bug fixes, test for logical evaluator
fixing too many hashes generated bug
Merge pull request #269 from matfed/master

fixing too many hashes generated bug
Different keys for different output records (important for hbase)
Refactored and extended test of logical evaluator
Added two new filters to statistics generator
Merge branch 'master' of git://github.com/CeON/CoAnSys