Quite a lot of changes, actually (compared to the other commits)

- No more .sldrmods; hypernet is now /rom/backslash/ext/quantumnet and it's a userspace hack now
- interfaceMeta:drawBox and :drawText works, which means the whole display pipeline (or what the heck to call it) works as well
- string.escapePattern was acting up; conclusion: never leave :gsub on its own, it doesn't return a string only
- Boredom'd got the better of me and now I have a bunch of keyboard layouts in /rom/backslash/conf/osk/layouts