doc: updated credits and changelog.

doc/changelog.dox

@@ -341,6 +341,9 @@ See also:
 -   @ref Image, @ref CompressedImage, @ref ImageView, @ref CompressedImageView
     as well as @ref Trade::ImageData are now able to annotate array, cube map
     and cube map array images using @ref ImageFlags
+-   Removed unnecessary @ref std::string usage from certain
+    @relativeref{Corrade,Utility::ConfigurationValue} specializations (see
+    [mosra/magnum#582](https://github.com/mosra/magnum/pull/582))
 
 @subsubsection changelog-latest-changes-debugtools DebugTools library
 

doc/credits.dox

@@ -147,7 +147,7 @@ Are the below lists missing your name or something's wrong?
 -   **Hilario Pérez Corona** ([\@hpcorona](https://github.com/hpcorona)) ---
     improvements to @cb{.cmake} android_create_apk() @ce
 -   **Hugo Amnov** ([\@hugoam](https://github.com/hugoam)) --- buildsystem
-    improvements
+    improvements and STL usage cleanup
 -   **Ivan P.** ([\@uzername](https://github.com/uzername)) --- documentation
     improvements
 -   **Ivan Sanz Carasa** ([\@isc30](https://github.com/isc30)) --- buildsystem