Bump version to 4.8.1
Bump version to 4.8.1

ungleich/addon-context-linux,thomasalrin/addon-context-linux,OpenNebula/addon-context-linux,fasrc/addon-context-linux,OpenNebula/addon-context-linux,fasrc/addon-context-linux,ungleich/addon-context-linux,baby-gnu/addon-context-linux,puppetmaster/addon-context-linux,baby-gnu/addon-context-linux,puppetmaster/addon-context-linux