* Fix quoting overrides, set etc.

[n . puttock]

LGTM.

There are a few trailing spaces in the regtest though.

Some of the lines in recording-group-emulate are far too long
(particularly where you've added the comment).


http://codereview.appspot.com/124064/diff/1/2
File input/regression/quote-overrides.ly (right):

http://codereview.appspot.com/124064/diff/1/2#newcode5
Line 5: @code{\\override}, @code{\\once\\override}, @code{\\revert},
@code{\\set},
space after \\once

http://codereview.appspot.com/124064/diff/1/2#newcode23
Line 23: % Checking \once\override
\once \override

http://codereview.appspot.com/124064/diff/1/3
File scm/part-combiner.scm (right):

http://codereview.appspot.com/124064/diff/1/3#newcode213
Line 213: ; The accumulate-event-listener above creates the list of
events in reverse order,
;;

http://codereview.appspot.com/124064/diff/1/3#newcode214
Line 214: ; so we have to revert it to be in the original order again
;;

http://codereview.appspot.com/124064