* 'develop' of https://github.com/ONLYOFFICE/sdkjs:
  asc_addShapeOnSheet
  change functions(for multiply matrix)
  add script
  Updated state of undo button in a fast collaboration mode.
  fix bug 33638
  Added functions for set/get global lock. New scheme with undo in fast collaboration were moved to standard shortcut Ctrl+Z.
  .
  Is_SelectionUse
  functions for mobile version
  .
  add function for test
  Fixed bug with adding cell change.
  .
  .
  .
  .

Added functions for set/get global lock. New scheme with undo in fast collaboration were moved to standard shortcut Ctrl+Z.

Feature/mobile web

Fixed issue in commutation of different content changes. Also fixed bug that new reversed changes weren't add to list of all changes.

Fixed bug with adding a new paragraphs in the main document. Fixed bug with loading reversed changes for client who made this changes. Added a test hotkey for Undo in fast collaborative.

v4.2.1