adding zephyr-im master branch

lib/zephyr_run_doctests

@@ -0,0 +1,12 @@
+#!/usr/bin/python
+
+import sys, doctest
+
+failures, tests = doctest.testfile("zephyr_tests.txt")
+
+print failures, 'failures out of', tests, 'tests.'
+if failures:
+    sys.exit(1)
+
+
+