added permissions for viewing and voting in polls

init.rb

@@ -6,6 +6,8 @@ Redmine::Plugin.register :redmine_polls do
   url 'http://www.redmine.org/projects/redmine/wiki/Plugin_Tutorial'
   author_url 'http://69.164.219.227/redmine'
 
-  permission :polls, { :polls => [ :index, :vote ] }, :public => true
+#  permission :polls, { :polls => [ :index, :vote ] }, :public => true
+  permission :view_polls, :polls => :index
+  permission :vote_polls, :polls => :vote
   menu :project_menu, :polls, { :controller => 'polls', :action => 'index' }, :caption => 'Polls', :after => :activity, :param => :project_id
 end