build: update default CXXFLAGS.

* Add -std=c++03 and -pedantic, and fix the resulting warnings. The
  long-long-int warning is explicitly suppressed because it's not
  trivial to workaround in a platform-independent and ISO-conformant
  way without using C++11.

* Initial support for building with -std=c++11 (experimental).

* Prefer -Og optimization level in debug builds if supported by the
  compiler.

Change-Id: I744a25c8b52842dc3ea3a733d6ab2fa66171e6f8
diff --git a/daemon/core/face-uri.cpp b/daemon/core/face-uri.cpp
index 5da35cd..5cfaf72 100644
--- a/daemon/core/face-uri.cpp
+++ b/daemon/core/face-uri.cpp
@@ -24,6 +24,7 @@
 
 #include "face-uri.hpp"
 #include "core/logger.hpp"
+
 #ifdef HAVE_PCAP
 #include "face/ethernet.hpp"
 #endif // HAVE_PCAP