backport some doc updates and renames

Dependencies

• [2] R7BFYHKY move temporary file out of user directory (if possible)
• [3] VCLH24QJ update protocol so driver shows syntax errors
• [4] QFURHRTP rename globals to have a single uppercase letter
• [5] NVVHJWJE a new event: receiving code changes from the driver
• [6] 5OVKHVY6 nice way to make on.* handlers more discoverable
• [7] WZZGVKSG a few more renames
• [8] TBWAE64A app is now live, can communicate with driver
• [9] LRDM35CE app running again

Change contents

• replacement in live.lua at line 4
  [5.888]→[5.888:1032](∅→∅)
  − -- from the largest numeric prefix found, obtain a manifest

  − -- load all files (which must start with a numeric prefix) from the manifest)
  [5.888]

  [5.1032]
  + -- from the numeric prefix in file 'head', obtain a manifest

  + -- load all files (which must start with a numeric prefix) from the manifest
• replacement in live.lua at line 12
  [5.1238]→[5.1238:1306](∅→∅)
  − -- save the message's value to a specific, unused numeric prefix
  [5.1238]

  [5.1306]
  + -- save the message's value to a new, smallest unused numeric prefix
• edit in live.lua at line 14
  [5.1330]

  [5.1330]
  + -- if there's an error, go back to the previous value of the same

  + -- definition if one exists
• replacement in live.lua at line 17
  [5.1333]→[5.1333:1470](∅→∅)
  − -- if a game encounters an error:

  − -- find the previous version of the definition in the 'head' numeric prefix

  − -- decrement 'head'
  [5.1333]

  [5.1470]
  + -- if a game encounters a run-time error, send it to the driver and await

  + -- further instructions. The app will go unresponsive in the meantime, that

  + -- is expected. To shut it down cleanly, type C-q in the driver.
• replacement in live.lua at line 150
  [4.570]→[5.4946:4977](∅→∅),[5.4946]→[5.4946:4977](∅→∅)
  − local buf = live.receive()
  [4.570]

  [5.4977]
  + local buf = live.receive_from_driver()
• replacement in live.lua at line 160
  [5.5140]→[5.5140:5164](∅→∅)
  − function live.receive()
  [5.5140]

  [2.8]
  + function live.receive_from_driver()
• replacement in live.lua at line 175
  [5.5647]→[5.5647:5671](∅→∅)
  − function live.send(msg)
  [5.5647]

  [2.197]
  + function live.send_to_driver(msg)
• replacement in live.lua at line 208
  [5.6159]→[5.6159:6191](∅→∅)
  − local cmd = buf:match('^%S+')
  [5.6159]

  [5.6191]
  + local cmd = live.get_cmd_from_buffer(buf)
• replacement in live.lua at line 214
  [5.6312]→[4.610:652](∅→∅)
  − live.send(json.encode(Live.manifest))
  [5.6312]

  [5.6354]
  + live.send_to_driver(json.encode(Live.manifest))
• replacement in live.lua at line 230
  [5.7050]→[5.7050:7091](∅→∅)
  − live.send(live.get_binding(binding))
  [5.7050]

  [5.7091]
  + live.send_to_driver(live.get_binding(binding))
• replacement in live.lua at line 251
  [5.7983]→[5.7983:8024](∅→∅)
  − live.send('ERROR '..tostring(err))
  [5.7983]

  [5.8024]
  + live.send_to_driver('ERROR '..tostring(err))
• replacement in live.lua at line 253
  [5.8032]→[3.8:28](∅→∅)
  − live.send('ok')
  [5.8032]

  [5.8032]
  + live.send_to_driver('ok')
• edit in live.lua at line 257
  [5.8043]

  [5.8043]
  + function live.get_cmd_from_buffer(buf)

  + return buf:match('^%s*(%S+)')

  + end

  +
• replacement in live.lua at line 305
  [5.10619]→[5.619:659](∅→∅)
  − live.send_run_time_error(stack_trace)
  [5.10619]

  [5.10654]
  + live.send_run_time_error_to_driver(stack_trace)
• replacement in live.lua at line 308
  [5.10675]→[5.10675:10700](∅→∅)
  − buf = live.receive()
  [5.10675]

  [5.10700]
  + buf = live.receive_from_driver()