Updating for 2013-06 release
Adding version info to front page
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))
merge dev_4_4 -D org -I include -E exclude: PR 390 (Americanize spellings and fix typos)
merge dev_4_4 -D org -I include -E exclude: PR 395 (Update OMERO 4 docs to 2013-06)