This plugin provides a gui for downloading community assets from within MakeHuman. When installed, you will get a new tab "community" with a subtab "assets" inside MakeHuman.
To use this, you also need to install MHAPI.
To install, copy the directories 1_MHAPI (from the MHAPI repo) and 8_assetdownload to the "plugins" directory under where you installed MakeHuman. On windows this is where you unzipped MH. On Linux this is likely /usr/share/makehuman/plugins.
When you start MH the next time, the plugin should run automatically.