Publishing updates

v8.0.12

implement publishing in tools gradle

6.0 Release

This release updates the library to JoyPixels 6.0 and Unicode 13.0.

Patch Release

This patch fixes incorrect ImagePathPNG endpoint for emoji assets.

Version 5.0 Release

This release bring the project current to Unicode 12.0 and JoyPixels 5.0.

Version 4.5 Release

This release brings the project current to Emoji 11.0 and JoyPixels 4.5.