[Orgmode] sub-headline empahsis markers in 5.14

[Scott Otterson]

Now that the emphasis code has been simplified in 5.14, is it possible 
to go back and fix a lingering bug with emphasis and sub-headlines?  The 
problem is that emphasis doesn't work if it's applied on the first 
ub-headline character.  For example, emphasis fails for the first 
sub-headline below, but succeeds on the second.

* headline
*** _subheadline1_
***  _subheadline2_

By the way, the new ability to hide the emphasis markers is quite nice.