Setting version to 5.6.0-SNAPSHOT
[DROOLS-105]  Indexing may be broken with unification queries
[DROOLS-106] Using the same pattern in and out of a sliding windows causes an NPE if a join is involved
[DROOLS-64] Traits do not comply with type inheritance on "modify"
[DROOLS-107] NPE when inserting through rule (object already present as derived class)
[DROOLS-109] DRLDumper does not handle nested and/ors correctly
[JBRULES-3201] Sliding windows - Rule is being fired even when LHS is false