Use an uri for redis server

conf/settings.ini.dist

@@ -3,8 +3,8 @@
 ;dsn = 'DBI:mysql:database=devroom;host=localhost'
 ;user = 'vroom'
 ;password = 'password'
-; Redis server
-;redis = 'localhost:6379'
+; Redis server URI
+;redis = 'redis://127.0.0.1:6379'
 
 [turn]
 ; The stun server sent to client. You can set it to your own stun server. Takes a comma separated list of full 

lib/Vroom/Conf.pm

@@ -17,7 +17,7 @@ sub get_conf(){
   $config->{'database.dsn'}                      ||= 'DBI:mysql:database=vroom;host=localhost';
   $config->{'database.user'}                     ||= 'vroom';
   $config->{'database.password'}                 ||= 'vroom';
-  $config->{'database.redis'}                    ||= 'localhost:6379';
+  $config->{'database.redis'}                    ||= 'redis://127.0.0.1:6379/';
   $config->{'signaling.uri'}                     ||= 'https://vroom.example.com/';
   $config->{'turn.stun_server'}                  ||= 'stun.l.google.com:19302';
   $config->{'turn.turn_server'}                  ||= undef;