some updates of "Presenting theories", using mkroot/build instead of former mkdir/make/usedir (which are still present in "Misc");
#contributed components
contrib/cvc3-2.4.1
contrib/e-1.5
contrib/hol-light-bundle-0.5-126
contrib/kodkodi-1.2.16
contrib/spass-3.8ds
contrib/scala-2.9.2
contrib/vampire-1.0
contrib/yices-1.0.28
contrib/z3-4.0
contrib/jedit_build-20120414
contrib/jdk-6u31