Use correct address for readResource() when transforming ops
minor api clarification
use convertAttribute() also to add attributes
rename AbstractTransformationContext
check for an empty address
some API cleanup
more API cleanup
Introduce the error or warn functionality for rejected attributes
Add transformation logging
Remove SubsystemTransformer
API cleanup
fix operation address transformation
Fix JMX subsystem test following removal of the subsystem transformer
remove register method from description
Add 7.1.3. legacy dmr definitions

- changed file name format to include micro version
- enabled transaction subsystem 7.1.3 transformers tests
Make it harder for the attribute checkers and converters to start changing ModelNodes they should not
Add an AttributeDiscarder discarding an attribute if it matches the passed in value
don't change the operationbuilder to attributebuilder
allow adding already created child builders
Fix custom operation transformer