automatically insert timestamp every time

Dependencies

• [2] HHYXYWAF bugfix: write to file 'recent'
• [3] KKMFQDR4 editing source code from within the app
• [4] 57OGXVHZ Merge lines.love
• [5] T4C5HT2O support a commandline arg just like in pensieve.love
• [*] BJ5X5O4A let's prevent the text cursor from ever getting on a drawing

Change contents

• replacement in run.lua at line 26
  [3.53]→[3.35:91](∅→∅),[3.35]→[3.35:91](∅→∅)
  − Editor_state.file_path = os.date('%Y/%m/%d/%H-%M-%S')
  [3.53]

  [3.54]
  + local t = os.time()

  + Editor_state.file_path = os.date('%Y/%m/%d/%H-%M-%S', t)
• edit in run.lua at line 35
  [2.216]

  [3.164]
  + table.insert(Editor_state.lines, 1, {data=os.date('%Y-%m-%d %H:%M:%S', t), mode='text'})

  + Editor_state.cursor1 = {line=2, pos=1}
• edit in Manual_tests.md at line 29
  [3.954]

  [3.211526]
  +

  + * Open the window, type nothing, close the window. No new file is created.