Updating translated texidoc strings

[Trevor Daniels]

Francisco

I've just updated a snippet which contained translated 
texidoc strings.  Only the LilyPond code was changed,
not the texidoc strings themselves.  I also updated
the committishes in the four texidocs folders.  These
were in commits:

bfc88203ac2572737480e78ef2635ed35b458441
c7f44dbee0f7145429872478f9d397160957880e

and the snippet was vocal-ensemble-template.ly

As this is the first time I've done this could you
please check I've not messed up anything to do with
the translations.

Thanks

Trevor