v0.6.8.0

• Add 88200 Hz and 176400 Hz sample rate options
• Extend meter ranges to -100db
• Improved overall UI shading
• Improved layout and color of Mixer
• Return and Master tracks can now be hidden on Mixer and on Editor
• EQ: Fix Q changes using mouse wheel
• EQ: Fix zapping filters after enabling bands for the first time
• Tapedelay: Add Synced delay times and Ping Pong mode
• Fix crash when main window is minimized during app start
• Fix dropdown menus not closing on project unload
• Add undo/redo for project tempo changes
• Show error dialog when loadProject fails
• Remove block size 8096 option
• Fix a couple possible program crashes when using the second window