Fix : NGActiveSSLSocket.m causes infinite loop on some sockets in readBytes()
Index: sope-2.2.9/sope-core/NGStreams/NGActiveSSLSocket.m
===================================================================
--- sope-2.2.9.orig/sope-core/NGStreams/NGActiveSSLSocket.m	2014-09-26 20:38:11.000000000 +0200
+++ sope-2.2.9/sope-core/NGStreams/NGActiveSSLSocket.m	2016-01-20 09:19:06.059619399 +0100
@@ -92,7 +92,7 @@
 
 
   ret = gnutls_record_recv((gnutls_session_t) self->session, _buf, _len);
-  if (ret < 0)
+  if (ret <= 0)
     return NGStreamError;
   else
     return ret;