[elpa] externals/org updated (d240386c10 -> f0ff1df486)

[ELPA Syncer]

elpasync pushed a change to branch externals/org.

      from  d240386c10 org-diary-sexp-entry: Re-use cached nil return values
       new  6a82d17c89 ob-tangle: New tangle-finished hook
       new  5a96768dfa manual: Document org-babel-tangle-finished-hook
       new  f0ff1df486 manual: Note undocumented tangle hooks


Summary of changes:
 doc/org-manual.org |  6 ++++++
 etc/ORG-NEWS       |  7 +++++++
 lisp/ob-tangle.el  | 10 +++++++++-
 3 files changed, 22 insertions(+), 1 deletion(-)