Added changelog for 5.4.2

Author: fqez

debian/changelog

@@ -1,6 +1,6 @@
 jderobot (5.4.2) unstable; urgency=low
 
-  * release 5.4.1
+  * release 5.4.2
   * [PR #600] Enhancement. Updated Dockerfiles to use Jderobot 5.4.1
   * [PR #604] Fix. Taxis now uses pose3D plugins instead of imuplugins 
   * [PR #612] Fix. Updated the kobukiViewer cfg file for the new version of turtlebot plugin