D-Net

use new env param name for incremental transformation

On Claudio's request Sandro's variable has been extracted

spaces for human readability

fixed a bug updating ObjectStore Info

-Incremental transformation: Implemented incremental transformation and changed the nodes Fetch and Store MDRecords to read in the env the property of incremental read and store if there is, otherwise they work as usual

avoid NPEs

merged branch dsm into trunk

less logging

use java8 streams

Escape { and }