This is simply so that the deploy process doesn't need to download
anything that we might already have downloaded. We do explicitly call
"make deps" still to force verification of the checksums of the .js
files (even though we didn't just download them). This ensures that
these resource (which aren't otherwise tracked in git) haven't been
modified.
deploy:
rm -rf .deploy-source
git clone . .deploy-source
+ cp deps/*.js .deploy-source/deps
+ make -C .deploy-source deps
make -C .deploy-source LMNO_BUILD=production
rm -rf .deploy-source/.git
(cd .deploy-source; rsync -avz \