README: Update for release=1.5.4

Author: Kerry Kimbrough

README.md

@@ -2,9 +2,9 @@
 
 ## What's New? ##
 
-  * The latest version (Tcases 1.5.3) is now available at the Maven Central Repository. See [HowToDownload](HowToDownload.md) for download instructions. 
+  * The latest version (Tcases 1.5.4) is now available at the Maven Central Repository. See [HowToDownload](HowToDownload.md) for download instructions. 
 
-  * Tcases 1.5.3 includes [several improvements](ReleaseNotes.md) to existing features.
+  * Tcases 1.5.4 includes [several improvements](ReleaseNotes.md) to existing features.
 
   * Subscribe to the [Tcases Forum](https://groups.google.com/d/forum/tcases) group to get notifications and share experiences with other Tcases users.
 

ReleaseNotes.md

@@ -1,8 +1,13 @@
 # Release Notes #
 
-## 1.5.3 ##
+## 1.5.4 ##
+
+  * Fixes the ```tcases``` and ```tcases-reducer``` commands to correctly support the ```-R``` option.
 
-This release includes the following improvements.
+  * Refactor XML document readers to use ```org.xml.sax.Attributes.getQName()```. This is more correct than ```getLocalName()```,
+    which can return an empty string in some JVM implementations, resulting in a parser failure.
+
+## 1.5.3 ##
 
   * Fixes a defect that caused the ```tcases``` command to fail when reading a system input definition from standard input.