[DROOLS-246]  Ensure traitable classes are declared as @Traitable
[DROOLS-247] Property reactivity does not work with positional/unification constraints
[DROOLS-64] [DROOLS-113] Cleanup applyTrait method, support imperfect don
[DROOLS-248] Declared Traits do not inherit fields if multiple inheritance is used
[DROOLS-250] avoid NPE in MVELConstraint
[DROOLS-244] Sliding windows working incorrectly when timestamp attribute is defined
[DROOLS-253]  Importing a domain class named "Exception" raises an ambiguity exception during RHS compilation
[DROOLS-251]  Classloader fails to resolve when annotation and declared class have the same name
[DROOLS-249] Handle conflicts when using @position in declared types
[DROOLS-10]  Cannot use @timestamp annotation on a java.sql.Timestamp field when declaring metadata for an existing Java type
[DROOLS-18] DRL constraint on a class with is() and get() for the same field
[DROOLS-18] Do not silently ignore errors during read accessor creation
[DROOLS-70] NPE when an event expires during evaluation of accumulate when run as fireUntilHalt()
[DROOLS-87] org.drools.time.impl.DefaultJobHandle causes NullPointer in hashCode
[DROOLS-102] Error inserting facts after session restore
[DROOLS-117] The "from" CE does not manage @events correctly
[DROOLS-173]  Collect and accumulate conditions not working together - test case
[DROOLS-178] NoSuchMethodError at runtime due to eval in query (BW chaining)
[DROOLS-175] Deadlock when invoking queries concurrently - test case
[DROOLS-252] Deserialization with TimerJobFactoryOption causes NPE - backport