[elpa] externals/org updated (30dbfc6 -> 58db28d)

[ELPA Syncer]

elpasync pushed a change to branch externals/org.

      from  30dbfc6   org-manual: minor org-cite additions
       new  fa97f9a   ob-tangle: Accept more :tangle-mode forms
       new  58db28d   ob-R: Tidy up bits of the async implementation


Summary of changes:
 lisp/ob-R.el      | 22 +++++-----------------
 lisp/ob-tangle.el | 35 ++++++++++++++++++++++++++++++++++-
 2 files changed, 39 insertions(+), 18 deletions(-)