[maven-release-plugin] prepare release galen-0.7.4
[maven-release-plugin] prepare release galen-0.7.4

stefanbirkner/galen,tommywo/galen,thhiep/galen,thr0w/galen,thr0w/galen,tommywo/galen,lo1tuma/galen,lo1tuma/galen,Drooids/galen,stefanbirkner/galen,tommywo/galen,thhiep/galen,Drooids/galen,thhiep/galen,lo1tuma/galen,Drooids/galen,stefanbirkner/galen,thr0w/galen,lo1tuma/galen,stefanbirkner/galen,thr0w/galen,Drooids/galen,tommywo/galen,thhiep/galen