Export paths before building, otherwise ecto build fails

Former-commit-id: 2f2d3aa5c1

configure.sh

@@ -1,5 +1,10 @@
 #!/bin/bash
 
+## Set up library paths
+RUNPATH="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+export PYTHONPATH=$RUNPATH/SuperBuild/install/lib/python2.7/dist-packages:$RUNPATH/SuperBuild/src/opensfm:$PYTHONPATH
+export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$RUNPATH/SuperBuild/install/lib
+
 ## Before installing
 echo "Updating the system"
 sudo apt-get update