I'm running klayout 0.21.11 on Windows 7 using the installable version, and I've been playing around with scripting. RBA seems to work fine, but when I try to run any of the QtRuby examples, they fail with the error 'no such file to load -- Qt'. Is the qtruby library supposed to be included with the klayout installation, or does this need to be installed manually? I don't see any qtruby-ish files in the lib folder of the klayout installation. I assume this lib folder gets used by the klayout ruby interpreter, not any system ruby lib directory. If this does need to be manually installed, it would be helpful to add a note in the docs.