REAPER v6.29rc3

v6.29rc3 - May 10 2021

* Includes feature branch: custom metadata columns in Media Explorer
* Includes feature branch: razor envelope editing
* Includes feature branch: ReaSurroundPan
+ OSC: support touch status for up to 2048 tracks [t=253320]
+ ReaScript: improve Lua ReaScriptError() behavior when called from extension-added functions, allow ! prefix to stop script execution
+ Super8: improve MIDI-control behavior when same note/CC is assigned to a channel's record and play controls
+ macOS: rename ARM build to
+ macOS: rename Intel 64-bit version of REAPER to, update volume labels of disk images
# ReaSurroundPan: clear pending automation messages on playback start/reset [p=2442152]
# macOS: fix notarization of Intel clang12 builds