Adding test script for future worker handler module. Also added some
content to the README.md file.
Updated the h5handler method and associated test script. An empty queue
is now simply denoted by None. Also, the worker flow was updated to fix
bugs related to active threads with empty queues waiting for input.
Added worker_handler module. Not-tested.
Deleted the worker_handler module (functionality moved to pyssembly
package).
added .gitignore file