workflows: task description added

Signed-off-by: Georgios Papoutsakis <georgios.papoutsakis@cern.ch>
workflows: added a decorator

* Adds a decorator to pass the atributes of a
  function to its closure.

Signed-off-by: Georgios Papoutsakis <georgios.papoutsakis@cern.ch>
workflows: task details fixed

* Adds more information for each
  task in details page.

* Removes workflows.css.

Signed-off-by: Georgios Papoutsakis <georgios.papoutsakis@cern.ch>
workflows: workflow representation improvements

Signed-off-by: Georgios Papoutsakis <georgios.papoutsakis@cern.ch>
workflows: bibclassify results templating

Signed-off-by: Georgios Papoutsakis <georgios.papoutsakis@cern.ch>
workflows: PEP8 fixes

Signed-off-by: Georgios Papoutsakis <georgios.papoutsakis@cern.ch>