1.59 -> 1.60

Graph zoom correctly restored on closing and reopening the plugin UI.
Fix for hanging on resume with Cubase/Nuendo ASIO guard active.
Fix potential crash on instantiating mono VST3 with out of range analyser sources.
Fix for band frequencies sometimes loading incorrectly until UI is opened when Extended Freqs enabled.
Fix for no end edit call after switching processing mode (was breaking plugin bypass in Studio One).
Improved undo of mouse wheel action.
Fix font rendering on non-retina displays.