Watsyn: use fast sinc instead of medium quality (not much diff in this case), increase oversampling to 32 because why not
Graph: optimize graph widget codepaths so that we don't send redundant samplesChanged signals, which in watsyn cause recalculation of the wavetable
Merge pull request #609 from diizy/wavetablesynth

Watsyn: use fast sinc instead of medium quality (not much diff in this c...