AAF Test Build - Beta 142
Added 2020-07-20 18:59:14 +0000 UTC## [Beta 142] - 2020-7-20
### Fixed
- sequential attribute in animationGroup XML was case sensitive.
- non-existant tag reference in Narration XML was ambiguous. Now gives clear error and reference hint.
- narration actors not being populated.
- narration actor tag was case sensitive.
- xsd changes.
