Make the keyboard analog limiter customisable.
Make it available for everybody.
Update native.
Default to a deadzone 0.6f (60%) instead, as suggested.
Reload the stream on loop. Fixes #6703. Thanks to @unknownbrackets
Merge pull request #6728 from thedax/kbd-analog-limit

(Redux) Make the keyboard analog limiter customisable.
Merge pull request #6733 from hrydgard/psmf-loop-fix

Reload the stream on loop. Fixes #6703.
Force positions to scale by 128/32768 as psp does.

This makes everything use floats for positions.  On some hardware/drivers,
this may be faster.  On some it may be slower.  We'll need testing to see
the performance impact.

Fixes Final Fantasy 4's pos misalignments, and probably others (like
Tekken 5 I suspect.)