0.4 (WIP)
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* Added title checking to filter unrelated results from subscriptions with search strings

0.3
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* Added smtp authentication
* Added notify option
* Added "verbose" and "quiet" output modes
* Added switch to clean the database of old video entries
* Added maxfails option and mark videos as permanently failed when that value is reached
* Added basic interactive configuration (doesn't check if your input makes sense at all!)
* Added German translation for most parts
* Implemented MAXVIDEOS configuration option to limit the number of videos retrieved from the youtube API
* Changed --lsvids to print the download status
* Made the youtube-dl output shown to the user depend on the defined output level
* Now uses youtube API version 2
* Fixed situation when all videos fail and the output would have suggested there were no videos to be downloaded
* Fixed a bug that lead to a duplicate subscription when a playlist was added
* Fixed error message printed when youtube-dl fails
* Improved output behaviour so strings will be properly encoded

0.2
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* Added catchup option
* Added option to print license information
* Added option to print version number
* Added a simple installer script
* Changed coding style to better conform to PEP-8
* Updated module usage: Use urllib2 instead of urllib and subprocess instead of os.system
* Many Bugfixes

0.1
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* Initial release