91.0 changelog part 3

Fixed:
Fix buginess / crash with ctrl+x in textboxes
Fix crash with sim.loadStamp which was sometimes breaking TPTMP
fix crash with sim.floodWalls(1,1,4,0)
Fix some other small bugs in some lua functions


Changed:
Allow DRAY to copy energy particles
Adding a comment updates the total number of pages
No longer error when opening saves from a newer version
You can now use any key shortcut when loading / saving stamps
Massive overhaul the mouse drawing code, fixes many issues it had with modifier keys / zoom / stamps
Related: Flood fill now triggers on all mouse events which fixes it sometimes not working during lag
Lots of changes to support better TPT Multiplayer syncing and also alternate update servers


Added:
Added ambient heat to the HUD, which is shown only when ambient heat is on in debug mode
Wall identifiers (only visible from Lua)
New Lua function tpt.confirm (to display a confirm prompt)
tpt.getscript now uses the http://starcatcher.us/scripts/ script server
New Lua mouse events which trigger when mouse drawing is canceled, or when going into another interface