Changelog

0.2.0

Fixed parsing problems when last event of SubRip file contained a blank line
Fixed WebVTT parsing logic to skip over invalid/unparsable blocks instead of stopping prematurely
Made adjustment of timings triggered by framerate update more accurate for timed MicroDVD subtitles
Remove Sized as supertrait of Subtitle
Add as_plaintext() method to TextEvent trait
Rename Error variant UnknownFileTypeError to FormatUnknownError