Merge tag '0.2.0' into develop

0.2.0
Starting 0.3.0
Option to use addTextTrack API.
Process captions all at once for VTT.
Parse out span styles.
TextTrack mode is set to disabled instead of the default hidden.
Parse out all html from ttml conversion to vtt.
Support for textAlign in VTT.
Support for html encodings such as &lt;
Support for italics.
Support for full episodes (only use one track, and remove cues between segments).
0.3.0
Merge branch 'release/0.3.0'