default create_connection to Resque.server

pairing with @tenderlove and @therealadam

Author: hone

lib/resque.rb

@@ -37,13 +37,13 @@ class << self
   #      or `Redis::Namespace`.
   def redis=(server)
     @server = server
-    @redis  = create_connection(server)
+    @redis  = create_connection
     @queues = Hash.new { |h,name|
       h[name] = Resque::Queue.new(name, @redis, coder)
     }
   end
 
-  def create_connection(server)
+  def create_connection(server = Resque.server)
     case server
     when String
       if server =~ /redis\:\/\//

test/threaded_pool_test.rb

@@ -20,7 +20,7 @@ def run
 
     before do
       @write  = Queue.new(:foo)
-      conn = Resque.create_connection(Resque.server)
+      conn = Resque.create_connection
       @read  = Queue.new(:foo, conn)
       @tp = ThreadedPool.new(@read, 5)
     end