dump1090-mutability (1.10.3010.14mu-11)

You may get prompted about a couple of new/changed config options when upgrading (receiver max range, and JSON refresh interval if you had it set to zero previously).

• Fix UTC clock display in non-UTC timezones.
• Layout tweaks in the info panel.
• Change plane color if we have not seen a recent position update (previously, any type of message was enough).
• Fix thinko in skipping over decoded message samples in the 2.4MHz demodulator.
• Fix a couple of problems found by valgrind.
• Fix several problems with surface position decoding and relative position decoding.
• Fix hang on exit after SIGINT.
• Add --max-range parameter. Use it for relative position limits, and to discard bad position results.
• Display message rate (30 sec average) on the webmap.
• Restart lighttpd on package upgrade if we changed its config files.
• Require that the JSON refresh interval is at least 1, as it is used to control the webmap refresh rate even if JSON files are not being written.