[WP34S] New GUI features

[fhub]

Marcus, a question for you:
I see that also the console version (wp34s.exe) has changed a lot (about 6kB bigger), so what effect have these new features on the console version?
There's no menu, so I don't know if (or how) these Open/Save/Import/Export function are also available in this version.

BTW, of course it's just a matter of taste, but I would prefer 'Load' instead of 'Open' (since Load is the opposite of Save, like Import vs. Export).

Franz