v0.14

Release Notes:

• IPF: Full write support (weak data, index misalignment)
• New GW commands: bandwidth, erase
  • bandwidth: Measure USB read/write bandwidth
  • erase: Erase a disk
• F7 USB: Improved bandwidth when writing to disk
  • Much less likely to see FluxUnderflow failures
• update: Fix a bug which could fail to reopen the GW device for update
• update: Automatically find the update file if filename not specified
• Control script: Tidier notification of errors (no scary backtrace)