Merge pull request #749 from rleigh-dundee/cmake-root

cmake: Use git root as project root
Merge pull request #745 from sbesson/matlab_performance_test

Improve bfCheckJavaPath performance testing
Deltavision: do not warn if the ND is set to "BLANK"
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 644 (Add support for writing ModuloAlong* annotations)
merge develop -D org -I include -E exclude: PR 748 (Add support for Bio-Rad .scn files)
merge develop -D org -I include -E exclude: PR 753 (Bug fixes for graphics formats)
merge develop -D org -I include -E exclude: PR 765 (Eclipse: ignore gmaven)
merge develop -D org -I include -E exclude: PR 767 (Fix Channel.Color interpretation in ImageJ)
merge develop -D org -I include -E exclude: PR 770 (Deltavision: do not warn if the ND is set to "BLANK")