Adding ome 5 to product menu
Cpp: Document use of -fpermissive
merge dev_4_4 -D org -I include -E exclude: PR 368 (Cpp: Correct content and markup)
merge dev_4_4 -D org -I include -E exclude: PR 384 (Add menu for OME5 documentation sets (rebased onto dev_4_4))
merge dev_4_4 -D org -I include -E exclude: PR 388 (Adding ome 5 to product menu (rebased onto dev_4_4))