made all changes for heroku

app/views/maps/show.html.erb

@@ -254,8 +254,10 @@
 				initialize("chaotic", true);
 		});
 	}
-  //window.realtime.socket = io.connect('http://gentle-savannah-1303.herokuapp.com');
-  window.realtime.socket = io.connect('http://metamaps.cc:5001');
+  window.realtime.socket = io.connect('http://gentle-savannah-1303.herokuapp.com'); // this is for the heroku staging environment
+  //window.realtime.socket = io.connect('http://metamaps.cc:5001'); // this is for metamaps.cc
+  //window.realtime.socket = io.connect('http://localhost:5001'); // this is for localhost development
+    
   window.realtime.socket.on('connect', function() {
       subscribeToRooms();
       console.log('socket connected');

config/initializers/devise.rb

@@ -13,7 +13,7 @@ Devise.setup do |config|
   if Rails.env.development?
     #config.secret_key = 'f71c467e526f23d614b3b08866cad4788c502bed869c282f06e73ee6c94675b62fe1f6d52fa7ba8196b33031f0d2f3b67e27ea07693c52ecebccb01700cad614'
   end
-  if Rails.env.production?
+  if Rails.env.production?  # this is for the heroku staging environment
     config.secret_key = 'd91ba0da95749174ee2b8922034783cbde4945409ed28b13383e18e72844beb74467f8199e9e216f0687cd2290c6e46bf74da24486d14bba3671d76c5b10c753'
   end
     

config/initializers/redis.rb

@@ -1,6 +1,6 @@
-#if Rails.env.development?
-$redis = Redis.new(:host => 'localhost', :port=> 6379)
-#elsif Rails.env.production?
-#  uri = URI.parse(ENV["REDISTOGO_URL"])
-#  $redis = Redis.new(:host => uri.host, :port => uri.port, :password => uri.password)
-#end
+if Rails.env.development?  ## this also applies to metamaps.cc production mode
+  $redis = Redis.new(:host => 'localhost', :port=> 6379)
+elsif Rails.env.production?  ## this is for the heroku staging environment
+  uri = URI.parse(ENV["REDISTOGO_URL"])
+  $redis = Redis.new(:host => uri.host, :port => uri.port, :password => uri.password)
+end