v0.16.0

• Alt+X sends the selection to a LocalSend device: a native, send-only implementation of the protocol - devices found by multicast and a subnet scan, or a typed address; PIN when the device asks; runs as a job with a progress bar and cancel; encrypted to the device's own certificate, pinned to the fingerprint it announced. The picker says what is going (Send folder - 12 files) and warns past 50 files.
• The serve dialog stamps each answered request with the time.