REAPER v6.60+dev0610

v6.60+dev0610 - June 10 2022

* Includes feature branch: various drawing integer overflow fixes with non-sensical values [t=267310]
* Includes feature branch: fixed lane play markers
* Includes feature branch: improve experimental silent-track CPU reduction option to include FX tail length
* Includes feature branch: media item fixed lanes
* Includes feature branch: internal pin management overhaul for future extension
+ MIDI: fix key signature export [t=267626]
+ Master track: fix loudness meter readout tooltip
+ Video: fix some WMF decoding issues that were un-fixed by a different WMF decoding fix in v6.60
+ macOS/Linux: cleanup internal thread management, avoid potentially incorrect pthread_join calls
+ macOS: fix potential deadlock when using AVFoundation decoding on a track that does not use media buffering [t=267563]
# Media item fixed lanes: all lane solo header button behaviors happen on mousedown rather than mouseup
# Media item fixed lanes: don't unsolo all lanes when in collapsed lane view [p=2567516]
# Media item fixed lanes: fix envelope lane faint peaks display when lanes are collapsed
# Media item fixed lanes: fix hidden items being included in marquee selection
# Media item fixed lanes: fix initiating pencil-draw when lanes are collapsed
# Media item fixed lanes: fix moving media items from non-laned tracks to tracks with hidden lanes
# Media item fixed lanes: fix moving razor edits from non-laned tracks to tracks with hidden lanes
# Media item fixed lanes: fix positioning of imported media when lanes are collapsed
# Media item fixed lanes: fix positioning of newly recorded items when lanes are collapsed
# Media item fixed lanes: retain lane play marker state even if track only has one lane
# Render: fix LUFS-I display when rendering multiple regions [t=267627]