Adds URL field to Cuke testing Tasks
Adds URL field to Cuke testing Tasks

The tasks created background step definition
'Fred has several tasks' did not contain any data
for the URL field. This was causing a error when
we tried to call `.empty` on nil objects.

Added url data to each of the Tasks (incl. a
few empty strings).

All Features now green.

gwhilts/temae,gwhilts/temae,gwhilts/temae