Cleanup

Don't advertise native functions in public API guides.  Don't list
primary selection access as most notable new feature.  Don't have
different levels of abstraction among selection helper functions.  Don't
forget to take credit.

Related to #1056.

README.md

@@ -124,9 +124,6 @@ information on what to include when reporting a bug.
 
 ## Changelog
 
-- Added `glfwSetX11SelectionString` and `glfwGetX11SelectionString`
-  native functions for accessing X11 primary selection as a supplement to
-  the clipboard on the X11 platform (#894)
 - Added `glfwGetError` function for querying the last error code and its
   description (#970)
 - Added `glfwUpdateGamepadMappings` function for importing gamepad mappings in
@@ -149,6 +146,8 @@ information on what to include when reporting a bug.
 - Added `glfwGetJoystickHats` function for querying joystick hats
   (#889,#906,#934)
 - Added `glfwInitHint` and `glfwInitHintString` for setting initialization hints
+- Added `glfwGetX11SelectionString` and `glfwSetX11SelectionString`
+  functions for accessing X11 primary selection (#894,#1056)
 - Added headless [OSMesa](http://mesa3d.org/osmesa.html) backend (#850)
 - Added definition of `GLAPIENTRY` to public header
 - Added `GLFW_CENTER_CURSOR` window hint for controlling cursor centering
@@ -333,6 +332,7 @@ skills.
  - Jon Morton
  - Pierre Moulon
  - Julian Møller
+ - Kristian Nielsen
  - Kamil Nowakowski
  - Ozzy
  - Andri Pálsson