Add simplejson 3.17.0

* Needed for requests to encode byte-strings to json

lib/simplejson/compat.py

@@ -0,0 +1,34 @@
+"""Python 3 compatibility shims
+"""
+import sys
+if sys.version_info[0] < 3:
+    PY3 = False
+    def b(s):
+        return s
+    try:
+        from cStringIO import StringIO
+    except ImportError:
+        from StringIO import StringIO
+    BytesIO = StringIO
+    text_type = unicode
+    binary_type = str
+    string_types = (basestring,)
+    integer_types = (int, long)
+    unichr = unichr
+    reload_module = reload
+else:
+    PY3 = True
+    if sys.version_info[:2] >= (3, 4):
+        from importlib import reload as reload_module
+    else:
+        from imp import reload as reload_module
+    def b(s):
+        return bytes(s, 'latin1')
+    from io import StringIO, BytesIO
+    text_type = str
+    binary_type = bytes
+    string_types = (str,)
+    integer_types = (int,)
+    unichr = chr
+
+long_type = integer_types[-1]