Added a few command line arguments. When run normally, it now loads
QDir::homePath() + "/jsrobokey_main.js" by default. Also a new menu item
and button to launch editor to edit the main script file.
And added a couple new methods, such as rk.getLoadedModuleFileStack()
which lists all the modules and files loaded in order that they were.
(kinda like rk.getIncludedFiles() but not really)