A few code reorganizations

Change-Id: If4632fecc7085e5448226c2061e08546757eda9b
diff --git a/core/logger-response.cpp b/core/logger-response.cpp
index c36f932..4b67ed5 100644
--- a/core/logger-response.cpp
+++ b/core/logger-response.cpp
@@ -22,7 +22,8 @@
 #include "logger-response.hpp"
 #include "tlv.hpp"
 
-namespace nsl {
+namespace ndn {
+namespace delorean {
 
 LoggerResponse::LoggerResponse()
   : m_code(-1)
@@ -128,4 +129,5 @@
     throw Error("No more sub-TLV in log response");
 }
 
-} // namespace nsl
+} // namespace delorean
+} // namespace ndn