Suppressed \GreLastOfScore if only no-element syllables follow it.

[henryso]

Fixes #1205.

I'm still unsure if this causes a problem related to #1116. @rpspringuel Would you be able to check?

No tests break, and I added the test from the issue.

Other than that, please review and merge if satisfactory.

[eroux]

Looks good to me, thanks a lot!

[rpspringuel]

I'm not sure what you're concerned about, but will take a look at the results later. @henryso, if you could elaborate on what you're worried about, I'll have a better idea of what to look for.

[henryso]

In rpspringuel#5, I moved \GreLastOfScore to its position prior to this pull request. That was either part of the fix for #1110 itself or the issue you identified in #1116.

[rpspringuel]

Well, the problem I identified in #1116 has to do with discretionaries mid-score, so this won't effect that (as evidenced by the fact that the clef-change test doesn't change). As for #1110, there is a test for that now and it looks good too, so I don't see any problems. All tests pass and the new test result looks good.

[henryso]

Ok, then I guess this is good to merge. Thanks!