I would suggest to exclude the test files (sapphire/selenium, sapphire/simpletest, and maybe also sapphire/tests) of the standard download since most users won't ever use or need those files and it would save some bandwidth and storage and speed up a little bit the manifest building.
This would reduce the size of the download (v2.0.2b) from 2.03 MB to approx. 1.80 and save almost 1 MB after unpacking it.
What do you think about this idea? Nevertheless you could offer a separate archive with those test files.