Documentation updated.

Test_all_versions script added.
Some minor misc changes.
Added polybench.

test_all_versions

@@ -0,0 +1,62 @@
+#!/bin/bash
+
+# this test script runs "./manage.py test" for
+# all supported python versions (2.4, 2.5, 2.6)
+# and all supported Django versions (1.1, 1.2, 1.3)
+
+# it needs symbolic links named "django1.1" and "django1.2" etc. in:
+# libraries-local/django-versions
+# which point to the respective django versions
+
+cd libraries-local
+rm -f django-orig
+if test -e django ; then mv django django-orig ; fi
+cd ..
+
+function restore_django {
+    echo "### restoring original libraries-local/django"
+    cd libraries-local
+    if test -e django-orig  ; then mv django-orig django ; fi
+    cd .
+}
+
+function test_python_version {
+    if which python$1 ; then
+        if ! python$1 manage.py test ; then
+            echo ERROR
+            restore_django
+            exit 10
+        fi
+    else
+        echo
+        echo "### python $1 is not installed!"
+        echo
+    fi
+}
+
+function test_all_python_versions {
+    test_python_version 2.4
+    test_python_version 2.5
+    test_python_version 2.6
+}
+
+function test_django_version {
+    if ! test -e libraries-local/django-versions/django$1 ; then
+        echo
+        echo "### django $1 is not installed!"
+        echo
+        return
+    fi
+    cd libraries-local
+    rm -f django
+    ln -s django-versions/django$1 django
+    cd ..
+    test_all_python_versions
+}
+
+test_django_version 1.1
+test_django_version 1.2
+test_django_version 1.3
+
+restore_django
+