Use this layer index's URL for layer branch

If we're integrating the layer index and the RRS, no need to jump off to
the OE index if for example this is an internal index.

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>

rrs/views.py

@@ -7,7 +7,7 @@ from datetime import date, datetime
 from django.http import Http404
 from django.shortcuts import get_object_or_404
 from django.views.generic import ListView, DetailView, RedirectView
-from django.core.urlresolvers import resolve, reverse
+from django.core.urlresolvers import resolve, reverse, reverse_lazy
 from django.db import connection
 
 from layerindex.models import Recipe
@@ -41,8 +41,7 @@ def _check_url_params(upstream_status, maintainer_name):
         raise Http404
 
 def _get_layer_branch_url(branch, layer_name):
-    return ("http://layers.openembedded.org/layerindex/branch/%s/layer/%s/"\
-                % (branch, layer_name))
+    return reverse_lazy('layer_item', args=(branch, layer_name))
 
 class Raw():
     """ Raw SQL call to improve performance