Added virtualenv to setup and run python scripts

code/run_python.sh

@@ -1,5 +1,6 @@
 PYTHONPATH="$1/code/pysource"
 export PYTHONPATH
 cd $1/code/
+source ./bin/activate
 echo `which python`
 python ./synthesize_grains.py

code/setup_python.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+pip install virtualenv
+virtualenv ./
+source ./bin/activate
+pip install ./