MSXAudio: Fix mute not setting key off correctly.
tools: Update Glass to version 0.6.
Darky: Save one byte.
Added tag release-1.3 for changeset d53f33dc6397
Application: Increase version to 1.3.
CHANGES: Set 1.3 release date and add Mercurial log link.
README: Add link to SourceHut issue tracker.
CHANGES: Fix broken SourceHut links.

Unfortunately they changed the URL format without setting up a redirect.
Neotron: Change Neotron (B) to Neotron B.
OPL3/OPNFMOnSFG: Correctly round the clock for multiples of 315 / 88 MHz.
YM3526/YM3812/YMF262: Also detect DalSoRi R2 explicitly for these chips.

It was only detected as such when playing OPL4 music, for other chips it found
a regular MoonSound. Not an issue in itself, but could lead to user confusion.
OPL3: Pass waveform select enable for OPL2s.

OPL2 is not officially supported for playback, but since it is detected as OPL3,
we pass this flag to allow it to play back OPL2 music nevertheless.
README: Add Supersoniqs to the thanks.
neonlib: Update to latest.

Preserve interrupt status in Memory_MatchSlotString.
Makoto: OPNA needs no waits accessing the ADPCM unit registers.
OPLTimer: Introduce new timer for OPL3 and OPL4.

It provides a timing resolution of 1130 Hz, which can also be configured higher.

In theory it would also work on MSX-AUDIO, however that requires more waits to
be added since there must be a 84 / 3.58 µs wait after a data write, and the
interrupt handling up to the int reset write takes less, esp. on faster CPUs.
DalSoRiR2: Do not unnecessarily disable interrupts during detection.
DalSoRiR2: Correct symbol names.
MSXAudio: Extract DetectPort routine taking the port as parameter.

It does not rely on ix so can be reused more easily.
OPL3: Extract DetectPort routine taking the port as parameter.

It does not rely on ix so can be reused more easily, and its register writes
take MSX-AUDIO timing into account.
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