Clean up this fusepy for Gateway use.

We've been using the fuse.py bundled with the gateway this whole time.
In preparation for using this one, a couple tweaks had to be
forward-ported from the gateway code tree's (older, but oddly slightly
different) fuse.py.

Also removing the unused fuse-2.9.3 subdirectory.

Adding the original maldivica fuse.py for posterity, because we'll be
removing it from the gateway repo's tree.

Adding a upload.sh script to push development code out to a gateway.

[no PT story]