fixes #11 always create the paginator's own output_buffer rather than…

… reusing the template's one

because the template's output_buffer is not yet instantiated in some cases

lib/kaminari/helpers.rb

@@ -17,10 +17,6 @@ def partial_exists?(name) #:nodoc:
         resolver.find_all(*args_for_lookup(name)).present?
       end
 
-      def output_buffer #:nodoc:
-        @template.instance_variable_get('@output_buffer')
-      end
-
       private
       def context
         @template.instance_variable_get('@lookup_context')

lib/kaminari/tags.rb

@@ -73,7 +73,7 @@ class Paginator < Tag
       def initialize(template, window_options) #:nodoc:
         @template, @options = template, window_options.reverse_merge(template.options)
         # so that this instance can actually "render". Black magic?
-        @output_buffer = @template.output_buffer
+        @output_buffer = ActionView::OutputBuffer.new
       end
 
       # render given block as a view template