Fixed compiler issues with gcc-4.6 c++0x.

src/core/curl_get.cc

@@ -82,7 +82,7 @@ CurlGet::start() {
 
     // Normally libcurl should handle the timeout. But sometimes that doesn't
     // work right so we do a fallback timeout that just aborts the transfer.
-    m_taskTimeout.set_slot(rak::mem_fn(this, &CurlGet::receive_timeout));
+    m_taskTimeout.set_slot(std::tr1::bind(&CurlGet::receive_timeout, this));
     priority_queue_erase(&taskScheduler, &m_taskTimeout);
     priority_queue_insert(&taskScheduler, &m_taskTimeout, cachedTime + rak::timer::from_seconds(m_timeout + 5));
   }