Fixed up SNR logging to include maximum 32 satellites (which is plenty even for future, not yet deployed global positioning systems)
perf: Allow printing to arbritrary fds
Log perf counters
Merge branch 'master' of github.com:PX4/Firmware into gps_logging_dual
Introduced extended logging mode to shield general userbase from developer logging options
Merge branch 'master' of github.com:PX4/Firmware into gps_logging_dual
Better docs in GPS topic
Better docs on log messages
Always log both GPS SNR sets. Assign array IDs by PRN to get a per-satellite unique mapping
Pre-emptively increase the log buffer - after the last cleanup we got again plenty of RAM
sdlog2: Fix GPS sat offset math
commander: Better audio indications on arming reject reasons
ubx driver: Fix / shorten printfs
Fixed audio output to provide decent user feedback
gps topic: Added snr and jamming fields
sdlog2: Logging GPS snr and jamming fields
bugfixes in UBX driver, emit new SNR, Jamming and noise count indices
Merge pull request #987 from PX4/gps_logging_dual

Gps logging dual