Version 0.8.0
Version 0.7.0
Version 0.6.0
Version 0.5.0
Version 0.4.0
Version 0.3.0
Version 0.2.0
Version 0.1.2 (sames as 0.1.1)
Version 0.0.2
Version 0.1.1; allow empty GL_ID
Version 0.1.0
test tag
Tag to make "git describe" work