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CHANGELOG
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v.0.2.5 - 2017-07-13
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* Added an example package to illustrate usage
* Added documentation
* Added tests
* Added util module (holds some utility functions for some of the default implementations)

v.0.2.4 - 2017-05-27
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* DownloadStrategy class introduced to break up configuration between the "download" and the "request"
* BoundedSemaphore implemented to control number of concurrent requests, removed PriorityQueue implementation
* AioDownload class reworked to feature two async methods:
    - main (entry point for task creation)
    - request_and_download (coordinates the logic implemented in RequestStrategy and DownloadStrategy)
* UrlBundle changed to AioDownloadBundle, some property changes to object
* added short hand functions one, swarm, and each to the API

v.0.1.1 - 2016-07-04
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* initial working code release
* Python 3.5
* built on top of aiohttp, no other 3rd party dependencies
* core classes / concepts: AioDownload, UrlBundle, RequestStrategy
* two request strategies:
    - Lenient (try two times with two two seconds between requests)
    - Backoff (exponential backoff up to 1 min.)
* largely undocumented