The manual is an aggregate document build by pulling in the 'adoc' files from the other modules in this project. REDHAWK Driver, REDHAWK REST docs are both partially built at compile time. So to get a fresh copy of their docs or for those docs to be included you must compile them. Once you have the other modules docs in place that the full manual depends on you can build the manual using the following command:
mvn clean generate-resources -Djava.io.tmpdir=./