misc: rename namespace jami to namespace dhtnet

Change-Id: I904ec8fa1f35dfdcf1aabd5f1ec8d95989ad0696
diff --git a/src/ice_transport.cpp b/src/ice_transport.cpp
index 0318a3d..602347d 100644
--- a/src/ice_transport.cpp
+++ b/src/ice_transport.cpp
@@ -1896,4 +1896,4 @@
         ice_transport_->setDefaultRemoteAddress(compId_, addr);
 }
 
-} // namespace jami
+} // namespace dhtnet