User-agent:
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.10) Gecko/20100528 Thunderbird/3.0.5
Some tests/demos are excluded from the tests because they're too long.
We should add a command line option to include/exclude them so we can
test all demos before a release. Some broken demos have slipped into
releases.
