shill: Rename SMLOG to SLOG

Rewrite SMLOG as SLOG, thus saving many edits.  Change the location of
the SLOG macro to be memory_log.h, requiring includes to be rewritten
and reordered.  While we're rewriting includes, moving all assorted
logging includes into a generic shill/logging.h, thus saving future
logging changes from altering these includes ever again.

BUG=chromium-os:31145
TEST=Builds, unit tests still pass

Change-Id: Ie5129fcbdda87f3149460209a682c698b876b09a
Reviewed-on: https://gerrit.chromium.org/gerrit/29650
Commit-Ready: Christopher Wiley <wiley@chromium.org>
Reviewed-by: Christopher Wiley <wiley@chromium.org>
Tested-by: Christopher Wiley <wiley@chromium.org>
diff --git a/routing_table.cc b/routing_table.cc
index 7a3b002..a3418f5 100644
--- a/routing_table.cc
+++ b/routing_table.cc
@@ -22,17 +22,16 @@
 #include <base/file_path.h>
 #include <base/file_util.h>
 #include <base/hash_tables.h>
-#include <base/logging.h>
 #include <base/memory/scoped_ptr.h>
 #include <base/stl_util.h>
 #include <base/stringprintf.h>
 
 #include "shill/byte_string.h"
+#include "shill/logging.h"
 #include "shill/routing_table_entry.h"
 #include "shill/rtnl_handler.h"
 #include "shill/rtnl_listener.h"
 #include "shill/rtnl_message.h"
-#include "shill/scope_logger.h"
 
 using base::Bind;
 using base::Unretained;