Removes the EAX logo from the audio settings dialog.

This means that we no longer need to round trip the localized strings
through Python, improving performance and reducing code bloat in
xOptionsMenu.py.

As a drive by, I changed the monitor calibration instructions to scale
with resolution, so they should be more legible on high resolution
displays.

This allows the user to turn off DynamicCamMaps, which can be fairly
expensive. This mirrors a similar option in Myst V.