new, skeletal evenlet backend
added evenlet backend to fatory
Merge branch 'master' into jconnor-other-downloader-implementations
addition of event callbacks to eventlet backend
further reporting and asynch downloading for eventlet downloader backend
temporarily making eventlet downloader the http default
added cancel support
comments
changed is_cancelled to is_canceled for consistency
documentation, comments, and cleanup
Merge branch 'master' into jconnor-other-downloader-implementations
Merge branch 'master' into jconnor-other-downloader-implementations
Merge branch 'master' into jconnor-other-downloader-implementations
fixed bytes shadowing
renamed backends to downloaders as there is no need for a backend without a proverbial frontend
got rid of download factory
removed protocol as a required keyword argument to the downloader config
added tests for eventlet downloader
Merge branch 'master' into jconnor-other-downloader-implementations
Merge branch 'master' into jconnor-other-downloader-implementations