Merge branch 'lqs2-migration' into 'master'

src/archive/unused_record.liq

src/archive/unused_recorder.liq

src/engine.liq

src/events.liq

src/functions.liq

src/in_fallback.liq

src/in_queue.liq

src/in_soundcard.liq

src/in_stream.liq

src/library.liq

src/out_stream.liq

src/outgoing_streams/mp3.liq

src/outgoing_streams/ogg.liq

src/readini.liq

src/serverfunctions.liq

src/settings.liq

tests/base_config.liq

tests/engine_test_suite.liq

tests/test_alsa_file.liq

tests/test_alsa_framesize.liq