D-Net

#1302 merging 20150518_new_funding_model branch back to the trunk

concatenating identifiers with stringutils

introducing objectstores provider for manual object store identifiers retrieval

Removing usage of working_dir from Java workflow node.

#968 aligning IIS importer with ObjectStore#deliverObjects() API method changes

#963 propagating dataset -> mdstore from import to exporting phase: importer produces DocumentToMDStore datasetore utilized by exporter module. Updating transformer definition to handle DocumentToMDStore instead of Identifier schema

updating mdstore test

introducing support for handling update column qualifiers holding inferenced data, disabled by default

introducing regex support in result approver to support iis::* kind of provenance, updating workflow definitions with proper regex values

introducing regex support in result approver to support iis::* kind of provenance, updating workflow definitions with proper regex values