REAPER v6.34+dev0813

v6.34+dev0813 - August 13 2021

* Includes feature branch: MIDI editor note reordering
* Includes feature branch: media item lanes
+ Metadata: fix embedding CART intro/segue markers that occur at the very start of the rendered file
+ Razor edits: fix editing envelope point that occurs at the start of an automation item [p=2471931]
+ ReaSurroundPan: label an elevated speaker in the center of the room as "overhead", other elevated speakers as "height"
+ Windows: avoid potential splash screen hang when caught in an invalidate/postmessage loop [t=256285]
# Master/parent send: change .RPP storage of one-channel parent send setting (now warns if loaded in previous versions)
# Metadata: fix embedding XMP markers that occur at the very start of the rendered file
# Mixer: avoid calling InvalidateRect from within paint
# ReaSurroundPan: minor labeling change for Auro speaker setups