IZPACK-664: make the build work again with Maven2
IZPACK-664: make the build work again with Maven2

The issue was with the maven-site-plugin incompatibilities between
Maven2 and Maven3. I simply applied the profile technique suggested at:
    http://maven.apache.org/plugins/maven-site-plugin-3.0-beta-3/maven-3.html

optotronic/izpack,mtjandra/izpack,bradcfisher/izpack,yukron/izpack,maichler/izpack,akuhtz/izpack,mtjandra/izpack,maichler/izpack,akuhtz/izpack,tomas-forsman/izpack,optotronic/izpack,codehaus/izpack,rkrell/izpack,maichler/izpack,izpack/izpack,rkrell/izpack,maichler/izpack,Murdock01/izpack,tomas-forsman/izpack,mtjandra/izpack,Murdock01/izpack,rsharipov/izpack,akuhtz/izpack,rsharipov/izpack,bradcfisher/izpack,Murdock01/izpack,tomas-forsman/izpack,izpack/izpack,yukron/izpack,mtjandra/izpack,tomas-forsman/izpack,mtjandra/izpack,akuhtz/izpack,stenix71/izpack,yukron/izpack,codehaus/izpack,Helpstone/izpack,bradcfisher/izpack,rkrell/izpack,rsharipov/izpack,Helpstone/izpack,codehaus/izpack,tomas-forsman/izpack,optotronic/izpack,izpack/izpack,Helpstone/izpack,rkrell/izpack,rkrell/izpack,Murdock01/izpack,bradcfisher/izpack,mtjandra/izpack,rsharipov/izpack,maichler/izpack,izpack/izpack,stenix71/izpack,Helpstone/izpack,rkrell/izpack,maichler/izpack,akuhtz/izpack,stenix71/izpack,codehaus/izpack,izpack/izpack,optotronic/izpack,Helpstone/izpack,Helpstone/izpack,akuhtz/izpack,bradcfisher/izpack,codehaus/izpack,codehaus/izpack,yukron/izpack,stenix71/izpack,maichler/izpack,tomas-forsman/izpack,akuhtz/izpack,yukron/izpack,bradcfisher/izpack,Helpstone/izpack,Murdock01/izpack,codehaus/izpack,tomas-forsman/izpack,bradcfisher/izpack,yukron/izpack,stenix71/izpack,Murdock01/izpack,izpack/izpack,izpack/izpack,stenix71/izpack,optotronic/izpack,rkrell/izpack,optotronic/izpack,rsharipov/izpack,optotronic/izpack,stenix71/izpack,Murdock01/izpack,yukron/izpack,rsharipov/izpack,rsharipov/izpack,mtjandra/izpack