v0.27

Release Notes:

• EDSK: Support writing KBI-19 protection tracks
• EDSK: Support next IDAM in preceding sector's GAP
• gw seek: New option --motor-on to enable drive motor while seeking
• New firmware command: CMD_GET_PIN to interrogate input floppy pins
• New board type: V4 (using AT32F4xx MCUs)
• New board type: F1 Plus (enhanced BP adapter board by Monideth Pen)