#2 highlight aligned phrase

[Lars Nygaard]

When querying aligned corpora, I can set both positive
and negative restrictions on the contents of the
aligned regions. I would in addition like to specify a
query that will only be highlighted, but will not
restrict what hits are returned.

This is particularly important for the Perl interface,
where it seems impossible to use subcorpora.

[Andrew Hardie]

We should consider this as a criterion for one or other of the two redesigned output modes in v3.9/4.0