clearer comments

Dependencies

• [2] SVJZZDC3 snapshot - no, that's all wrong
• [3] 537TQ2QN some more logging
• [4] XNFTJHC4 split keyboard handling between Text and Drawing
• [5] C42QQZSF another piece of support for line wrapping in cursor up
• [6] MGT5FTJ3 first stab at supporting wrapping in cursor up
• [*] BULPIBEG beginnings of a module for the text editor

Change contents

• replacement in text.lua at line 234
  [2.198]→[3.129:183](∅→∅),[3.129]→[3.129:183](∅→∅)
  − -- top line is done; skip to previous text line
  [2.198]

  [3.183]
  + -- line is done; skip to previous text line
• edit in text.lua at line 245
  [3.183]

  [3.183]
  + -- previous text line found, pick its final screen line
• replacement in text.lua at line 262
  [3.686]→[3.686:742](∅→∅)
  − -- scroll up just one screen line in current line
  [3.686]

  [2.495]
  + -- move up one screen line in current line