Deprecate header dune/fufem/concept.hh

This has been superseded by `dune/common/concept.hh`.

CHANGELOG.md

@@ -2,7 +2,21 @@
 
 - ...
 
-## Deprecations and removals
+## Deprecations
+
+- Objects of type `VirtualFunction` and `DifferentiableVirtualFunction` cannot be created
+  from embedded Python anymore.  Both have been deprecated since before the release of
+  `dune-common` 2.7.
+
+- The following implementations of the deprecated `Dune::VirtualFunction` interface
+  have been removed: `ConstantFunction`, `SumFunction`, `SumGridFunction`,
+  `ComposedFunction`, `ComposedGridFunction`, `Polynomial`.
+
+- The header `dune/fufem/concept.hh` has been deprecated. Please use the concept utilities
+  from `dune/common/concept.hh` instead.
+
+
+## Removals
 
 - The method `assembleBasisInterpolationMatrix` has been removed.  It only worked
   for old `dune-fufem`-style function space bases.
@@ -23,20 +37,9 @@
   It still relied on the old `dune-fufem` function space basis interface.
   Please use `Dune::Fufem::MassAssembler` instead!
 
-- Objects of type `VirtualFunction` and `DifferentiableVirtualFunction` cannot be created
-  from embedded Python anymore.  Both have been deprecated since before the release of
-  `dune-common` 2.7.
-
-- The following implementations of the deprecated `Dune::VirtualFunction` interface
-  have been removed: `ConstantFunction`, `SumFunction`, `SumGridFunction`,
-  `ComposedFunction`, `ComposedGridFunction`, `Polynomial`.
-
 - The class `NamedFunctionMap` based on `Dune::VirtualFunction` has been removed.
   Use `std::map<:std::string, std::function<Range(Domain)>>` as a replacement.
 
-- The function `Dune::Fufem::formatString()` and the corresponding header
-  `dune/fufem/formatstring.hh` are deprecated. Please use `Dune::formatString()` from
-  `dune/common/stringutility.hh` instead.
 
 # 2.9 Release
 

dune/fufem/concept.hh

@@ -3,6 +3,8 @@
 #ifndef DUNE_FUFEM_CONCEPT_HH
 #define DUNE_FUFEM_CONCEPT_HH
 
+#warning This file is deprecated and will be removed after 2.10!  Please use dune/common/concept.hh instead!
+
 #include <type_traits>
 #include <utility>