v0.2.1
Added url
parameter to the WorkGroup
which is a bit more attractive
API, instead of including the URL in a kwarg. The reason why the URL was
originally included as a kwarg is that depending on how the custom
Spider
is set up, the URL may already be specified, and it is redundant to
specify it again. But for API clarity sake, now we just insist the URL is
specified in the WorkGroup
. At least, it is easier to read at a quick glance.