Initial commit.
Packing all extensions in a folder.

* Read extension build dir from `kitt.yml` (defaults to '.').
Made `loadExtension` only use asyncchronous calls.
Showing a list of extensions. WIP.
Use a real tmp dir for extensions (crxes).

Cleanup on exit.
Added FS watcher.
Minor inline comments edit.
Serving extension icon.
Websocket support.
Added author. Fixed missing icon URL bug.
error check.
Removed useless debug.
Fixed tests (added author).
Added README.
Minor readme updates.
Minor doc update.
Update README.md
minor readme update
Update README.md
Addressed review comments.

Plus added shrinkwrap.