[DROOLS-9] [DROOLS-39] [DROOLS-211] Remove scary stackTrace from warning message when MVEL optimization fails and engine falls back to default mode
[DROOLS-239] InitialFact leaks into other patterns via inheritance
[DROOLS-239] InitialFact leaks into other patterns via inheritance - 5.x additions not in 6.x
[DROOLS-243] CEP Operators in Rules failing to compile when getting PKG
[DROOLS-175]  Deadlock when invoking queries concurrently