* Enabled acid2 on mac + linux. Updated the reference image. The only difference from the
real acid2 now is the paint order and a 1 pixel horizontal offset on the nose.
* Change line-height to be calculated correctly.
* Apply enclosing element style to text fragments.
wrapper around them.
Fixes Wikipedia tables leaking out.
Along the way, I refactored tables' width calculation significantly.
This was necessary in order to properly handle floated tables, as some
of the logic had to be ported over from block flows.
construction.
The iteration was incorrect here. Although it accidentally worked
before, it will cause problems when we have incremental style
recalculation.
The `after_block_iteration` reftest will become interesting once we have
incremental style recalc.
This still needs a lot of work, but it covers the basic
cases and improves wikipedia while passing all existing tests.
Tweak reftest to deal with linux/travis black background.