Go to the folder formscanner-commons\src\main\resources\lib and the install the third-party libraries into the local maven repository:
$ mvn install:install-file -Dfile=quaqua-8.0.jar -DgroupId=ch.randelshofer -DartifactId=quaqua -Dversion=8.0 -Dpackaging=jar
The latest stable version of the quaqua library can be downloaded here