[BZ-1153852] fix incremental compilation when using a drl with functions
DROOLS-488 "Pluggable and Encapsulated Knowledge Types"
-Refactored Undecided to Decided.

DROOLS-488 "Pluggable and Encapsulated Knowledge Types"
-introduced _.neg and removed the DFL, JTMS pos/neg fact handle and neg entry point

DROOLS-488 "Pluggable and Encapsulated Knowledge Types"
-Added correct handling of NegConstraint for declared masks
-Fixed FH cloning and NegConstraint cloning

DROOLS-488 "Pluggable and Encapsulated Knowledge Types"
-Negatable support must be turned on for !_.neg constraint injection

DROOLS-488 "Pluggable and Encapsulated Knowledge Types"
-Better WM and TMS separation, as a pipeline

DROOLS-488 "Pluggable and Encapsulated Knowledge Types"
-Better WM and TMS separation, as a pipeline
-Neg is now separate map in the ObjectStore
[DROOLS-611] Initial abstract fact and property metaclasses
[DROOLS-608][DROOLS-611] Integrate traits with TMS; Extract trait logic from KnowledgeHelper
[DROOLS-611] Metadata and Metaclasses
[DROOLS-488] Fix TMS, Remove obsolete internal methods
DROOLS-488 "Pluggable and Encapsulated Knowledge Types"
-Fixing TMS, with more unit tests

Conflicts:
	drools-compiler/src/test/java/org/drools/compiler/integrationtests/TruthMaintenanceTest.java
[DROOLS-611] Metadata and metaclasses
Make PMML comply with WM and TMS correct action semantics
[DROOLS-488] Consolidation
Metadata and metaclasses, serializability
Metadata and metaclasses