Patch for osprofiler regression in django wsgi.

 - Normalise the path to resolve ../..
 - The "../.." fragment appears to be causing code in osprofiler/_utils.py
   some issues, so we'll resolve it for them.
 - https://review.openstack.org/#/c/397002/1

Change-Id: I3b8270b92be5d6ec58a17aea1b08a0203a144370
Partial-Bug: 1361235

templates/horizon_django.wsgi.j2

@@ -5,7 +5,7 @@ from django.core.wsgi import get_wsgi_application
 from django.conf import settings
 
 # Add this file path to sys.path in order to import settings
-sys.path.insert(0, os.path.join(os.path.dirname(os.path.realpath(__file__)), '../..'))
+sys.path.insert(0, os.path.normpath(os.path.join(os.path.dirname(os.path.realpath(__file__)), '../..')))
 os.environ['DJANGO_SETTINGS_MODULE'] = 'openstack_dashboard.settings'
 sys.stdout = sys.stderr