Problem::Evaluate implementation.
1. Add Problem::Evaluate and tests.
2. Remove Solver::Summary::initial/final_*
3. Remove Solver::Options::return_* members.
4. Various cpplint cleanups.
Change-Id: I4266de53489896f72d9c6798c5efde6748d68a47
diff --git a/internal/ceres/map_util.h b/internal/ceres/map_util.h
index ddf1252..929c6b3 100644
--- a/internal/ceres/map_util.h
+++ b/internal/ceres/map_util.h
@@ -35,6 +35,7 @@
#include <utility>
#include "ceres/internal/port.h"
+#include "glog/logging.h"
namespace ceres {
