We definitely intend to support RTL in the nearest future - maybe in the next release.
There is a partial workaround that will, at least, let your users enter field values from right to left. This workaround involves using direction property of the CSS style. You can assign this property to all input controls if you modify the CSS file used by Aware IM - AwareIM/Tomcat/webapps/AwareIM/aware_ext/resources/css/blue.css
Or you can add this property to individual attributes on a form if you use "Style" property of the attribute's presentation.