add option --all which will enable all optional packages (roofit, minuit2, gdml, table, unuran, etc).
add option --all which will enable all optional packages (roofit, minuit2,
gdml, table, unuran, etc).


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@41510 27541ba8-7e3a-0410-8455-c3a389f83636

bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT