rename a variable in _propagateExactTransDeps

The old name suggested to me "is currently in the queue", not "has ever
been enqueued"
do not write to disk if the server doesn't return anything useful
check for emptiness better
end-to-end self-test for publish and search for package
Add BrowserStackLocal binary to dev_bundle

We added the new binaries to the s3 bucket, and then GET them from the
generate_dev_bundle shell script.
chmod 755 the BrowserStackLocal binary.
Client CSS and template injection.
Fix client css insert