Updated changelog

Author: tkircher

ChangeLog

@@ -1,12 +1,10 @@
-Current
+Version 1.9.2
         * Removed redundant assignment (issue #422 @fluber)
         * Removed unnecessary null checks before delete (issue #420 @elfring)
         * Reverted PR #424 due to lack of portability
         * fscanf fix (PR #467 @rdelfin)
         * Out of bounds check (modified PR #455 @legrosbuffle, also included in PR #319 @seth-planet)
         * Fixed MacOS build (PR #470 @johnhe4, modified for linux)
-
-Version 1.9.2
 	* Fixed build system with dummy.c hack (PR #457 @pemmanuelviel)
 	* Fixed misleading indentation in util/any.h (PR #365 @psteinb, also PR #428, #430, #459)
 	* Included datasets in repo