Add support for Sinatra views overrides (add app views paths)

lib/kaminari/helpers/sinatra_helpers.rb

@@ -10,6 +10,11 @@ module Kaminari::Helpers
       def registered(app)
         app.register Padrino::Helpers
         app.helpers  HelperMethods
+        @app = app
+      end
+
+      def view_paths
+        @app.views
       end
 
       alias included registered
@@ -31,6 +36,7 @@ module Kaminari::Helpers
 
       def render(*args)
         base = ActionView::Base.new.tap do |a|
+          a.view_paths << SinatraHelpers.view_paths
           a.view_paths << File.expand_path('../../../../app/views', __FILE__)
         end
         base.render(*args)