erp5_oauth: Add mt_index to the tool

This will fix the issue below:

======================================================================
ERROR: test_refresh_token (erp5.component.test.erp5_version.testGoogleLogin.TestGoogleLogin)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/srv/slapgrid/slappart11/srv/runner/software/46ff20cd786207637e80576bed95522d/parts/erp5/Products/ERP5Type/tests/runUnitTest.py", line 291, in setUp
super(ComponentTestCase, self).setUp()
File "/srv/slapgrid/slappart11/srv/runner/software/46ff20cd786207637e80576bed95522d/eggs/Zope2-2.13.24-py2.7.egg/Testing/ZopeTestCase/PortalTestCase.py", line 60, in setUp
self.afterSetUp()
File "<portal_components/test.erp5.testGoogleLogin>", line 143, in afterSetUp
secret_key=SECRET_KEY)
File "/srv/slapgrid/slappart11/srv/runner/software/46ff20cd786207637e80576bed95522d/parts/erp5/product/ERP5Type/Core/Folder.py", line 620, in newContent
return FolderMixIn.newContent(self, *args, **kw)
File "/srv/slapgrid/slappart11/srv/runner/software/46ff20cd786207637e80576bed95522d/parts/erp5/product/ERP5Type/Core/Folder.py", line 163, in newContent
**kw)
File "/srv/slapgrid/slappart11/srv/runner/software/46ff20cd786207637e80576bed95522d/parts/erp5/product/ERP5Type/ERP5Type.py", line 399, in constructInstance
container._setObject(id, base_ob)
File "/srv/slapgrid/slappart11/srv/runner/software/46ff20cd786207637e80576bed95522d/parts/erp5/product/ERP5Type/Core/Folder.py", line 974, in _setObject
return CMFBTreeFolder._setObject(self, *args, **kw)
File "/srv/slapgrid/slappart11/srv/runner/software/46ff20cd786207637e80576bed95522d/eggs/Products.BTreeFolder2-2.13.5-py2.7.egg/Products/BTreeFolder2/BTreeFolder2.py", line 443, in _setObject
self._setOb(id, ob)
File "/srv/slapgrid/slappart11/srv/runner/software/46ff20cd786207637e80576bed95522d/parts/erp5/product/ERP5Type/Core/Folder.py", line 850, in _setOb
return CMFBTreeFolder._setOb(self, id, object)
File "/srv/slapgrid/slappart11/srv/runner/software/46ff20cd786207637e80576bed95522d/eggs/Products.BTreeFolder2-2.13.5-py2.7.egg/Products/BTreeFolder2/BTreeFolder2.py", line 256, in _setOb
ids = mti.get(meta_type, None)
AttributeError: 'NoneType' object has no attribute 'get'

bt5/erp5_oauth/ToolTemplateItem/portal_oauth.xml

@@ -13,11 +13,17 @@
             </value>
         </item>
         <item>
-            <key> <string>_tree</string> </key>
+            <key> <string>_mt_index</string> </key>
             <value>
               <persistent> <string encoding="base64">AAAAAAAAAAM=</string> </persistent>
             </value>
         </item>
+        <item>
+            <key> <string>_tree</string> </key>
+            <value>
+              <persistent> <string encoding="base64">AAAAAAAAAAQ=</string> </persistent>
+            </value>
+        </item>
         <item>
             <key> <string>consumer</string> </key>
             <value>
@@ -106,7 +112,7 @@
         <item>
             <key> <string>signature_methods</string> </key>
             <value>
-              <persistent> <string encoding="base64">AAAAAAAAAAQ=</string> </persistent>
+              <persistent> <string encoding="base64">AAAAAAAAAAU=</string> </persistent>
             </value>
         </item>
         <item>
@@ -127,10 +133,27 @@
       <global name="OOBTree" module="BTrees.OOBTree"/>
     </pickle>
     <pickle>
-      <none/>
+      <tuple>
+        <tuple>
+          <tuple>
+            <tuple>
+              <string>RPM Client Interface</string>
+              <persistent> <string encoding="base64">AAAAAAAAAAY=</string> </persistent>
+            </tuple>
+          </tuple>
+        </tuple>
+      </tuple>
     </pickle>
   </record>
   <record id="4" aka="AAAAAAAAAAQ=">
+    <pickle>
+      <global name="OOBTree" module="BTrees.OOBTree"/>
+    </pickle>
+    <pickle>
+      <none/>
+    </pickle>
+  </record>
+  <record id="5" aka="AAAAAAAAAAU=">
     <pickle>
       <tuple>
         <global name="PersistentMapping" module="Persistence.mapping"/>
@@ -148,11 +171,11 @@
                     <value>
                       <object>
                         <klass>
-                          <global id="4.1" name="_dt_reconstructor" module="DateTime.DateTime"/>
+                          <global id="5.1" name="_dt_reconstructor" module="DateTime.DateTime"/>
                         </klass>
                         <tuple>
                           <global name="OAuthSignatureMethod_HMAC_SHA1" module="Products.ERP5TioSafe.Tool.OAuthTool"/>
-                          <global id="4.2" name="object" module="__builtin__"/>
+                          <global id="5.2" name="object" module="__builtin__"/>
                           <none/>
                         </tuple>
                       </object>
@@ -162,10 +185,10 @@
                     <key> <string>PLAINTEXT</string> </key>
                     <value>
                       <object>
-                        <klass> <reference id="4.1"/> </klass>
+                        <klass> <reference id="5.1"/> </klass>
                         <tuple>
                           <global name="OAuthSignatureMethod_PLAINTEXT" module="Products.ERP5TioSafe.Tool.OAuthTool"/>
-                          <reference id="4.2"/>
+                          <reference id="5.2"/>
                           <none/>
                         </tuple>
                       </object>
@@ -177,4 +200,21 @@
       </dictionary>
     </pickle>
   </record>
+  <record id="6" aka="AAAAAAAAAAY=">
+    <pickle>
+      <global name="OIBTree" module="BTrees.OIBTree"/>
+    </pickle>
+    <pickle>
+      <tuple>
+        <tuple>
+          <tuple>
+            <tuple>
+              <string>rpm</string>
+              <int>1</int>
+            </tuple>
+          </tuple>
+        </tuple>
+      </tuple>
+    </pickle>
+  </record>
 </ZopeData>