Description:
------------
When I use queue::get() it doesn?t return the message yet it 
removes it from the queue. I believe I was able to patch 
amqp.c to remedy the issue with a patch similar to the one at 
http://code.google.com/p/php-rabbit/issues/detail?id=29.

Reproduce code:
---------------
$cnn = new AMQPConnection();
$ex = new AMQPExchange($cnn);
$ex->declare('exchange1', AMQP_EX_TYPE_FANOUT);
$q = new AMQPQueue($cnn, 'queue1');
$q->declare();
$ex->bind('queue1', 'routing.key');
$ex->publish('message', 'routing.key');
echo "Number of messages before get: " .  $q->declare() . "\n";
$msg = $q->get();
echo "Number of messages after get: " . $q->declare() . "\n";
echo "message received from get: " . print_r($msg,true) . "\n";

Expected result:
----------------
Number of messages before get: 1
Number of messages after get: 0
message received from get: Array
(
    [routing_key] => routing.key
    [exchange] => exchange1
    [delivery_tag] => 1
    [Content-type] => text/plain
    [count] => 0
    [msg] => message
)

Actual result:
--------------
Number of messages before get: 1
Number of messages after get: 0
message received from get: