Rename file and update refs.
Initial text changes
Further changes, mainly fs to dropbox.
Remove fs section and dropbox ref.
Fix section underlines to get correct levels.
Correct typo.
merge develop -D org -I include -E exclude: PR 369 (Cpp: Correct content and markup)
merge develop -D org -I include -E exclude: PR 404 (Updating Download screenshots for Version 5 (FS))
merge develop -D org -I include -E exclude: PR 422 (Fixes from ticket 11223 (rebased onto develop))
merge develop -D org -I include -E exclude: PR 425 (Dropbox page update (rebased on develop))