[elpa] externals/org updated (d96e897 -> 4efab76)

[ELPA Syncer]

elpasync pushed a change to branch externals/org.

      from  d96e897   ox-html: Use <img> tags for svgs, not <object>
       new  0260d2f   Allow multiple %(expression) instances in 
org-agenda-prefix-format
       new  ea8f761   Allow user to set ob-lilypond header arguments
       new  4efab76   ox-html.el: Add HTML_CONTENT_CLASS to support css classes 
in content tag


Summary of changes:
 etc/ORG-NEWS        |  4 ++++
 lisp/ob-lilypond.el | 12 ++++++++++--
 lisp/org-agenda.el  |  2 +-
 lisp/ox-html.el     | 16 +++++++++++++++-
 4 files changed, 30 insertions(+), 4 deletions(-)