[Reviewer Andy] Dynamic Sproutlet loading

Andy

Can you review the changes for dynamic sproutlet loading.  I'll email updated spec separately.

Mike
I did start wading through some of these docs but I came to the same conclusion - the commonalization in cw-deb.mak and the way it gets invoked from the main makefile was going to make it very tricky to plumb this through.  I also ended up failing to see what real benefit the debhelper was providing anyway.  I'll defer this for now but discuss with Matt next week as he may immediately know the right way to do this.