Correct some trivial typos

graphics/NxWidgets/UnitTests/nxwm/nxwm_main.cxx

@@ -864,4 +864,3 @@ int nxwm_main(int argc, char *argv[])
   showTestMemory("nxwm_main: Final memory usage");
   return EXIT_SUCCESS;
 }
-

graphics/NxWidgets/nxwm/src/ckeyboard.cxx

@@ -65,7 +65,7 @@ using namespace NxWM;
  * CKeyboard Constructor
  *
  * @param server. An instance of the NX server.  This will be needed for
- *   injecting mouse data.
+ *   injecting keyboard data.
  */
 
 CKeyboard::CKeyboard(NXWidgets::CNxServer *server)

graphics/NxWidgets/nxwm/src/ctouchscreen.cxx

@@ -89,7 +89,7 @@ using namespace NxWM;
  * CTouchscreen Constructor
  *
  * @param server. An instance of the NX server.  This will be needed for
- *   injecting mouse data.
+ *   injecting touchscreen data.
  * @param windowSize.  The size of the physical window in pixels.  This
  *   is needed for touchscreen scaling.
  */