Move _50_mistral.py file into enabled folder

if not, this file is not included when installing from pypi.

Closes-Bug: #1649669
Change-Id: Ie1415ea66ed6608ecff622c42e3a433be23bbdfe
Co-Authored-By: Sharat Sharma<sharat.sharma@necetechnologies.in>

README.rst

@@ -37,7 +37,7 @@ Or if you're planning to run Horizon server in a virtual environment (see below)
 
 and then
 
-    $ cp -b <mistral-dashboard>/_50_mistral.py.example <horizon>/openstack_dashboard/local/enabled/_50_mistral.py
+    $ cp -b <mistral-dashboard>/mistraldashboard/enabled/_50_mistral.py <horizon>/openstack_dashboard/local/enabled/_50_mistral.py
 
 Since Mistral only supports Identity v3, you must ensure that the dashboard
 points the proper OPENSTACK_KEYSTONE_URL in <horizon>/openstack_dashboard/local/local_settings.py file::

_50_mistral.py.example

@@ -1,11 +0,0 @@
-from mistraldashboard import exceptions
-
-DASHBOARD = 'mistral'
-ADD_INSTALLED_APPS = ['mistraldashboard']
-DEFAULT = True
-
-ADD_EXCEPTIONS = {
-    'recoverable': exceptions.RECOVERABLE,
-    'not_found': exceptions.NOT_FOUND,
-    'unauthorized': exceptions.UNAUTHORIZED,
-}

mistraldashboard/enabled/_50_mistral.py

@@ -0,0 +1,25 @@
+# Copyright (c) 2012 OpenStack Foundation.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from mistraldashboard import exceptions
+
+DASHBOARD = 'mistral'
+ADD_INSTALLED_APPS = ['mistraldashboard']
+DEFAULT = True
+
+ADD_EXCEPTIONS = {
+    'recoverable': exceptions.RECOVERABLE,
+    'not_found': exceptions.NOT_FOUND,
+    'unauthorized': exceptions.UNAUTHORIZED,
+}