Merge pull request #195 from sotty/5.6.x

[DROOLS-113] Certainty Factors
[DROOLS-134] Metadata inheritance is not resolved correctly when typeDeclarations are created implicitly
[DROOLS-135] Better support for @propertyReactivity on Collection fields in declared beans
[DROOLS-136] type casting via the # symbol hangs drools
[DROOLS-135] Better support for @propertyReactivity on Collection fields in declared beans