[elpa] externals/org updated (3e86487755 -> 892df429f4)

[ELPA Syncer]

elpasync pushed a change to branch externals/org.

      from  3e86487755 testing/lisp: Add missing `provide'
       new  d331f52cac org-crypt-key-for-heading: Handle CRYPTKEY nil value
       new  2d6032db96 org-manual: Clarify nil value of ~org-crypt-key~
       new  892df429f4 ox-latex: Use \empty instead of \relax after \\


Summary of changes:
 doc/org-manual.org             |  9 +++++++--
 lisp/org-crypt.el              |  5 +++--
 lisp/ox-latex.el               | 12 ++++++------
 testing/lisp/test-org-table.el |  6 +++---
 4 files changed, 19 insertions(+), 13 deletions(-)