move Selection1 clearing past business logic

Dependencies

• [2] 4KOI3E6R remove some redundant checks
• [3] V5MJRFOZ bugfix: down arrow doesn't scroll up unnecessarily
• [4] KOYAJWE4 extract a couple more methods
• [5] VJ77YABH more efficient undo/redo
• [6] CG3264MM move
• [7] SVJZZDC3 snapshot - no, that's all wrong
• [8] DHI6IJCN selecting text and deleting selections
• [9] EMHRPJ3R no, that's not right
• [10] DLQMM265 scroll past first page
• [11] ZPUQSPQP extract a few methods
• [12] XNFTJHC4 split keyboard handling between Text and Drawing
• [13] 2RXZ3PGO beginning of a new approach to scroll+wrap
• [14] AMSESRTH move some code
• [*] BULPIBEG beginnings of a module for the text editor

Change contents

• edit in text.lua at line 275
  [3.277]→[2.3:23](∅→∅)
  − Selection1 = {}
• edit in text.lua at line 276
  [3.293]

  [3.293]
  + Selection1 = {}
• edit in text.lua at line 278
  [3.324]

  [2.24]
  + Text.right()
• edit in text.lua at line 280
  [2.44]→[3.324:341](∅→∅),[3.8672]→[3.324:341](∅→∅),[3.324]→[3.324:341](∅→∅)
  − Text.right()
• edit in text.lua at line 292
  [3.456]→[2.45:65](∅→∅)
  − Selection1 = {}
• edit in text.lua at line 293
  [3.22]

  [3.761]
  + Selection1 = {}
• edit in text.lua at line 295
  [3.794]

  [2.66]
  + Text.word_right()
• edit in text.lua at line 297
  [2.86]→[3.23:45](∅→∅),[3.9087]→[3.23:45](∅→∅),[3.794]→[3.23:45](∅→∅)
  − Text.word_right()
• edit in text.lua at line 308
  [3.1103]→[2.87:107](∅→∅)
  − Selection1 = {}
• edit in text.lua at line 309
  [3.1123]→[3.1123:1152](∅→∅)
  − elseif chord == 'end' then
• edit in text.lua at line 310
  [2.128]

  [3.1152]
  + elseif chord == 'end' then
• edit in text.lua at line 312
  [3.1209]

  [3.9517]
  + Selection1 = {}
• edit in text.lua at line 324
  [3.3984]

  [2.129]
  + Text.up()
• edit in text.lua at line 326
  [2.149]→[3.46:60](∅→∅),[3.9914]→[3.46:60](∅→∅),[3.3984]→[3.46:60](∅→∅)
  − Text.up()
• edit in text.lua at line 327
  [3.4463]→[2.150:170](∅→∅)
  − Selection1 = {}
• edit in text.lua at line 328
  [3.9989]

  [3.9989]
  + Selection1 = {}
• edit in text.lua at line 340
  [3.33]

  [2.171]
  + Text.pageup()
• edit in text.lua at line 342
  [2.191]→[3.1:19](∅→∅),[3.10322]→[3.1:19](∅→∅),[3.33]→[3.1:19](∅→∅)
  − Text.pageup()
• edit in text.lua at line 343
  [3.893]→[2.192:212](∅→∅)
  − Selection1 = {}
• edit in text.lua at line 344
  [3.10401]

  [3.10401]
  + Selection1 = {}