Unity doesn't deal well with pure GtkHeaderBar apps, so this allows
for the GtkHeaderBar to be treated like a toolbar and the window
retain its chrome.
Adding '--parallel' to dh(1) calls permits parallel builds when
the user requests them, e.g. via the '-j' flag to dpkg-buildpackage
or other build helpers, or setting parallel=N in DEB_BUILD_OPTIONS
environment variable.
Will need to test this against a PPA, but I believe this fixes the
problem. gettext was not being initialized with the proper directory
because the PREFIX variable compiled into the binary was incorrect.
