Add simplejson 3.17.0

* Needed for requests to encode byte-strings to json

lib/simplejson/tests/test_pass3.py

@@ -0,0 +1,20 @@
+from unittest import TestCase
+
+import simplejson as json
+
+# from http://json.org/JSON_checker/test/pass3.json
+JSON = r'''
+{
+    "JSON Test Pattern pass3": {
+        "The outermost value": "must be an object or array.",
+        "In this test": "It is an object."
+    }
+}
+'''
+
+class TestPass3(TestCase):
+    def test_parse(self):
+        # test in/out equivalence and parsing
+        res = json.loads(JSON)
+        out = json.dumps(res)
+        self.assertEqual(res, json.loads(out))