- Patch #1106662 by linclark: Changed Provide all RDF configuration options in one section in Configuration.

Issue #949834 by linclark, Remon: Added Implement hook_requirements() to ensure that ARC2 exists already.

fix switch in rdfx_build_rdf_node() which caused the changed date of a node to be missing from the RDF model

This is a temporary fix, we ought to remove rdfx_get_namespaces() and rely on core's rdf_get_namespaces()

Cleaned up some files which should not belong to the drupal.org repository such as the ARC2 library.

Conflicts:
	README.txt
	drush/rdfx.drush.inc
	modules/evoc/evoc.info
	modules/evoc/evoc.install
	modules/evoc/evoc.module
	modules/evoc/evoc.pages.inc
	modules/evoc/evoc.test
	modules/evoc/tests/evoc_test.module
	modules/rdfui/rdfui.info
	modules/rdfui/rdfui.module
	rdfx.import.inc
	rdfx.info
	rdfx.install
	rdfx.module
	rdfx.pages.inc
	rdfx.query.inc
	rdfx.sparql.inc
	rdfx.terms.inc
	rdfx.test

Bug fix #976340: RDFx causes mayhem by using url() before all modules are loaded (patch by Dave Reid)

Many fixes including:
- #867248 Call-time pass-by-reference has been deprecated
- #925520 RDF file's prefix mapping overwrites user defined
- #926442 Provide link to import core vocabularies on installation (evoc)
- #924532 core API change: MergeQuery::update() does not exist anymore
- Improved tests for evoc
- new directory structure for the submodules