VocaDB - Vocaloid database

Nov 23, 2019

- Update youtube player and fix sometime display error code for valid video.
- Add filter by tag category names.
- Fix null date displayed on release event.
- Fix Not specified displayed on release event category.
- Fix loading progress sometime displayed even no more item for fetch.
- Add filter start/end date for release event search page.
- Improve filter page UI.