Version 2.0.0

Version 1.7.2

Version 1.7.1

Merge remote-tracking branch 'taina0407/patch-2'

Merge remote-tracking branch 'adversinc/feature/custom-opts'

Merge pull request #23 from cbess/master

Update dependencies

Crawler fires the crawledurl event the crawl of a specific URL is com…

…plete (whether successful or not).

Fire 'urllistcomplete' event when UrlList is permanently empty (locally)

Allow custom options to be passed to request.