Update comment referring to old "raring32.box" image
manual: Clarify separation of Debian base box vs. F-Droid base box
Add nasm to the buildserver box (fixes: #51)
Merge branch 'doc-update-v1' into 'master'

Update documentation re: testing32 image

Use different subsections for the Debian base box setup (which can be bypassed using the prebuilt image) and the F-Droid / SDK setup (which cannot be bypassed).

Side note: would it be possible to offer a torrent for testing32.box?  The direct download is taking over 2 hours on a 50Mbps link.

See merge request !32