Allow offline rendering at high sample rates if 'no audio' mode is selected.
Fix soft-crash if no wave editor item loaded...
Revert "Fix soft-crash if no wave editor item loaded..."

My IDE shit itself on switching branches and removed a lot of my code,
then I compounded the problem by doing a git commit -a

This reverts commit 477b7276f4294d239928664ca028abc35ef570c0.
More bug fixing....
Fix setting an alternate sample rate with no audio not working correctly...