CI with Travis and loads of portability fixes

ci-scripts/install-minuit.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+NAME='Minuit2-5.34.14'
+
+set -ex
+INITDIR=`pwd`
+cd local/build
+wget http://www.cern.ch/mathlibs/sw/5_34_14/Minuit2/${NAME}.tar.gz
+tar -xzvf ${NAME}.tar.gz
+mkdir -p ${NAME}/build
+cd ${NAME}/build
+../configure --prefix=${INITDIR}/local --disable-openmp
+make -j4 
+make install
+cd ${INITDIR}/local
+touch .built.minuit
+cd ${INITDIR}