Merge pull request #844 from sbesson/rebased/develop/new_ci_root

Modify the root of the main OME CI server to use ci.openmicroscopy.org (rebased onto develop)
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 834 (Permit cppwrap failure)