1. CLEANUP: Made associating concepts to QR resources UI ignostic.
2. CLEANUP: Removed old debug module.
3. CLEANUP: Removed QSIM DB; RDF prefixes are now loaded at project startup.
4. DEPLOYMENT: Added regular plTabular to project startup.
5. FIXED: Exporting QR models works again (sync to submodules).
6. ENHANCED: Added the URL property for QR model vertices, accessing plTabular.