Make Worker chainable. !!Contains API break!!
Make Worker chainable. !!Contains API break!!

The Worker class is now chainable. One can build chains programmatically by
using this syntax:

    'A string' | AWorker() | AnotherWorker()

This changes the Worker API: Now, the input_data parameter is not passed to
the contructor, but instead to the run() method.

SeNeReKo/TCFlib