-replaced single use of terrible_unescape_workaround_fuck(String) with call to URLDecoder.decode(String, String)
* tested new regex implementation of YoutubeExtractor.getVideoId(String)
- deleted old HashMap-based implementation of YoutubeExtractor.getVideoId(String)
* Miscellaneous typo corrections
* replaced direct page-scraping extraction of video publication date in YoutubeExtractor.getVideoInfo(String) with jsoup-based scrape of <meta> tag field in YYYY-MM-DD format
*similarly, replaced direct page-scraping extraction of view count with <meta> tag field.
Both <meta> tag fields still need to be formatted locale-specifically
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