Update oauth2client to v2.0.1 and googleapiclient to v1.5.0.

client/third_party/oauth2client/_pycrypto_crypt.py

Index: client/third_party/oauth2client/_pycrypto_crypt.py
diff --git a/client/third_party/oauth2client/_pycrypto_crypt.py b/client/third_party/oauth2client/_pycrypto_crypt.py
index 7b277aa889f66c4eca48f06293ee943ce55f1cb7..5ee7046db264c52e91db6b73ad99ca770d1bdd64 100644
--- a/client/third_party/oauth2client/_pycrypto_crypt.py
+++ b/client/third_party/oauth2client/_pycrypto_crypt.py
@@ -115,14 +115,12 @@ class PyCryptoSigner(object):
         Raises:
             NotImplementedError if the key isn't in PEM format.
         """
-        parsed_pem_key = _parse_pem_key(key)
+        parsed_pem_key = _parse_pem_key(_to_bytes(key))
         if parsed_pem_key:
             pkey = RSA.importKey(parsed_pem_key)
         else:
             raise NotImplementedError(
-                'PKCS12 format is not supported by the PyCrypto library. '
-                'Try converting to a "PEM" '
-                '(openssl pkcs12 -in xxxxx.p12 -nodes -nocerts > '
-                'privatekey.pem) '
-                'or using PyOpenSSL if native code is an option.')
+                'No key in PEM format was detected. This implementation '
+                'can only use the PyCrypto library for keys in PEM '
+                'format.')
         return PyCryptoSigner(pkey)