Update to 3.5.4

Author: jason-fox

.travis.yml

@@ -11,7 +11,7 @@ addons:
       - ant
 
 env:
-  - DITA_OT=3.5.1
+  - DITA_OT=3.5.4
 
 before_install:
   - zip -r fox.jason.passthrough.doxygen.zip . -x *.zip* *.git/* *temp/* *out/*

README.md

@@ -81,19 +81,19 @@ DITA-OT version is therefore 3.3. It is recommended that you upgrade to the late
 The DITA-OT doxygen plug-in is a file reader for the DITA Open Toolkit.
 
 -   Full installation instructions for downloading DITA-OT can be found
-    [here](https://www.dita-ot.org/3.5.1/topics/installing-client.html).
+    [here](https://www.dita-ot.org/3.5.4/topics/installing-client.html).
 
-    1.  Download the `dita-ot-3.5.1.zip` package from the project website at
+    1.  Download the `dita-ot-3.5.4.zip` package from the project website at
         [dita-ot.org/download](https://www.dita-ot.org/download)
     2.  Extract the contents of the package to the directory where you want to install DITA-OT.
     3.  **Optional**: Add the absolute path for the `bin` directory to the _PATH_ system variable.
 
     This defines the necessary environment variable to run the `dita` command from the command line.
 
 ```console
-curl -LO https://github.com/dita-ot/dita-ot/releases/download/3.5.1/dita-ot-3.5.1.zip
-unzip -q dita-ot-3.5.1.zip
-rm dita-ot-3.5.1.zip
+curl -LO https://github.com/dita-ot/dita-ot/releases/download/3.5.4/dita-ot-3.5.4.zip
+unzip -q dita-ot-3.5.4.zip
+rm dita-ot-3.5.4.zip
 ```
 
 ### Installing the Plug-in