Merge branch 'fix/atom-url-issue' into 'master'

do not rename .aToM but only .atom projects in migration

Sorry @DouweM forgot to add this.

See https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/2651/diffs#bc35672f73f4ee025132aee428f383acdf0f755e_0_51

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/3699

See merge request !2712

db/migrate/20160129135155_remove_dot_atom_path_ending_of_projects.rb

@@ -48,7 +48,7 @@ class RemoveDotAtomPathEndingOfProjects < ActiveRecord::Migration
   end
 
   def projects_with_dot_atom
-    select_all("SELECT p.id, p.path, n.path as namespace_path, n.id as namespace_id FROM projects p inner join namespaces n on n.id = p.namespace_id WHERE lower(p.path) LIKE '%.atom'")
+    select_all("SELECT p.id, p.path, n.path as namespace_path, n.id as namespace_id FROM projects p inner join namespaces n on n.id = p.namespace_id WHERE p.path LIKE '%.atom'")
   end
 
   def up