Fix and amend 16-beta3 changelog.
Use bold type instead of color to emphasize notification text.

- Also drop unused notification text style.
Fix episode selection jumping after secondary load.

- https://github.com/UweTrottmann/SeriesGuideInternal/issues/98
- Last item id defaulted to 0 causing the list to re-scroll on the second load.
Push version to 16-beta4, 15013.
Change log for 16-beta4.
Update to android gradle plugin 0.12.+.

- Temporarily revert to old manifest merger to avoid package name merging bug.
Merge tag 'v16-beta4' into dev