Bugfix: Put tensor_base.h back in place.

diff --git a/include/deal.II/base/tensor_base.h b/include/deal.II/base/tensor_base.h
new file mode 100644 (file)
index 0000000..eb38831
--- /dev/null
+++ b/include/deal.II/base/tensor_base.h
@@ -0,0 +1,6 @@
+#ifndef dealii__tensor_base_h
+#define dealii__tensor_base_h
+#warning This file is deprecated. Use <deal.II/base/tensor.h> instead.
+#endif
+
+#  include <deal.II/base/tensor.h>