Fix rewinding while fast-forwarding.

Was previously not stopping it, causing the state ring buffer to
wrap around.

Update clowncd.

Fix Emscripten builds.

Fix sprite plane viewer in double resolution mode.

"Fix" debugging address reverting when clicking outside the box.

Unfortunately, this prevents pressing enter from doing anything.

Windows fixes.

Add Unicode support to the Window file dialog code.

Bump to v0.4.4.

Bump version to v0.4.3.

Bump to version v0.4.2.