Adding the initial stuff for tasks

This gets the basics working
Adding the ability to find by project

This Closes #14
Adding the ability to query by tag

Closes #12
Adding tasks to the client

Also updating the README with a better demo
Better name for the example
Removing findByWorkspace

Evene though the documentation says it's a thing, the API disagrees
Merge pull request #21 from pspeter3/tasks

Tasks