[maven-release-plugin] copy for tag mp3agic-0.9.1

[maven-release-plugin] copy for tag mp3agic-0.9.0

[maven-release-plugin] copy for tag mp3agic-0.8.4

[maven-release-plugin] copy for tag mp3agic-0.8.3

[maven-release-plugin] copy for tag 0.8.2

[maven-release-plugin] copy for tag 0.8.1

Bump version to 0.8

Updates to readme

Added gitignore for output directories