merge develop -D org -I include -E exclude: PR 528 (Tile performance improvements for VMS and NDPI)
merge develop -D org -I include -E exclude: PR 556 (Add ``mkfake`` tool)
merge develop -D org -I include -E exclude: PR 569 (Web script for Schema 2013-06 release)
merge develop -D org -I include -E exclude: PR 571 (specification: Use correct unit and matrix symbols)
merge develop -D org -I include -E exclude: PR 572 (2013-06 schema links)