[elpa] externals/org updated (c66bdb0c9b -> d947988722)

[ELPA Syncer]

elpasync pushed a change to branch externals/org.

      from  c66bdb0c9b org-fold-core-style: Clarify "error-prone" in the 
docstring
       new  a79a742cbf Revert "org.el: Improve performance of deletion commands"
       new  f29ccf3161 test-org-fold: Cover the issue fixed by previous commit
       new  8e2fed82ed org-fold: Make sure that changes do not leave partially 
folded headings
       new  d947988722 * lisp/ob-core.el: Fix docstring quote usage


Summary of changes:
 lisp/ob-core.el               |  6 ++--
 lisp/org-fold-core.el         | 71 +++++++++++++++++++-------------------
 lisp/org-fold.el              | 52 ++++++++++++++++++++--------
 lisp/org.el                   | 79 ++++++++++++++++++++++---------------------
 testing/lisp/test-org-fold.el |  2 +-
 5 files changed, 117 insertions(+), 93 deletions(-)