[elpa] externals/org updated (710b6ca70e -> a1c923afda)

[ELPA Syncer]

elpasync pushed a change to branch externals/org.

      from  710b6ca70e Fix under-documented MathJax indentation option
       new  ea665792b2 org-compat: Use `define-advice' instead of `defadvice'
       new  a1c923afda org-scan-tags: Allow arbitrary character classes in todo 
keywords


Summary of changes:
 lisp/org-compat.el | 97 ++++++++++++++++++++++++------------------------------
 lisp/org.el        |  2 +-
 2 files changed, 44 insertions(+), 55 deletions(-)