Merge lines.love

Dependencies

• [2] 5MDZYVB3 Merge lines.love
• [3] J5NTUS2G source: show file being edited in window title bar
• [4] KKMFQDR4 editing source code from within the app
• [5] OMLASW7K experiment at avoiding some merge conflicts
• [6] J6UWSVHB bugfix: window title
• [7] X3CQLBTR set window title within each app

Change contents

• edit in source.lua at line 77
  [4.104]→[2.12:68](∅→∅),[4.104]→[3.13:85](∅→∅)
  − love.window.setTitle('lines-and-links.love - source')

  − love.window.setTitle('lines.love - source - '..Editor_state.filename)
• resurrect zombie in source.lua at line 77
  [2.68]→[4.105:108](∅→∅),[3.85]→[4.105:108](∅→∅),[4.57]→[4.105:108](∅→∅),[4.57]→[4.105:108](∅→∅)
  +

  +

  +
• edit in source.lua at line 77
  [4.104]

  [4.105]
  + love.window.setTitle('lines-and-links.love - source - '..Editor_state.filename)