v0.9.14a

Release Notes:

• Fix write pipeline: record track number for delayed write processing
• General Music (GEM): New host option "host=gem" for direct IMG support
• Direct support for Spectrum Opus Discovery (OPD) image files
• HFE, ADF: Batch writeback to the USB drive where possible
• FF.CFG: Replace "index-during-seek" with "index-suppression"
• Direct Access: Restart read at correct track position after a write