create_instance script update

now using examples/em_test.pickle as editorial model for new instances

scripts/create_instance.sh

 #cp -Rv $libdir/install/* $instdir
 cp -Rv $libdir/install/conf.d $instdir/
 cp -Rv $libdir/install/loader.py $instdir/
-cp -Rv $libdir/install/editorial_model.pickle $instdir/
+cp -Rv $libdir/examples/em_test.pickle $instdir/editorial_model.pickle
 ln -sv $libdir/install/Makefile $instdir/Makefile
 ln -sv $libdir/install/lodel_admin.py $instdir/lodel_admin.py
 ln -sv $libdir/plugins $instdir/plugins