All the distribution tools are in ref/sw/PLPTool-Distrib
There is a Windows installer that can be compiled using NSIS. The script that will generate the installer is located in PLPTool-Distrib/windows/plptool_installer.nsi. You can also build the whole project by using the build scripts in the distrib directory. You will need JDK and ant to build PLPTool. Run build.bat to build PLPTool, and compile the installer using NSIS. If you're running Linux, you can run build-all.sh and it'll build everything and all the installers and zip packages.
The Linux .deb package is generated using the dpkg tool.
The installer should work with Windows up to version 8.1. I don't think we've tried with Windows 10. The debian package should work with any distribution that has at least a JRE Java 6 installed.
Installing the JDK should already set your environment variables properly, but if not, set JAVA_HOME to where Java is installed (the root directory, where bin, lib, etc. directories are).
The build script will also use the ANT_HOME environment variable, which needs to be pointed to the ant root installation directory.