asciidoctor-maven-plugin-1.5.3

This release includes amongst others, important improvements in the site plugin integration.
Now it is possible to pass several options to the site plugin with the following syntax:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-site-plugin</artifactId>
    <version>3.3</version>
    <configuration>
        <asciidoc>
            <templateDirs>
                <dir>src/site/asciidoc/templates</dir>
                </templateDirs>
                <!-- or...
                <templateDir>src/site/asciidoc/templates</templateDir>
                -->
                <requires>
                    <require>base64</require>
                    <require>time</require>
                 </requires>
                 <attributes>
                     <source-highlighter>coderay</source-highlighter>
                     <coderay-css>style</coderay-css>
                     <toclevels>2</toclevels>
                 </attributes>
             </asciidoc>
             <moduleExcludes>
                 <asciidoc>**/_*.adoc</asciidoc>
             </moduleExcludes>
    </configuration>
    <dependencies>
        <dependency>
            <groupId>org.asciidoctor</groupId>
         </dependency>
    </dependencies>
</plugin>

See this for more details: #182