use "&#160;" instead of "&nbsp;"
Fix for IE8
Merge pull request #488 from danvk/ie8-fix

Fix for IE8
more precise cleanup in push-to-web.sh
Hairlines/Super-annotations plugins + test
Prevent labels from wrapping.

This involves changing the default spacing for labels.
clean up reference/comments
try dropping width again; there is a bug :(
fix issue #494 & expand xAxisLabelWidth; lots of failing tests
merge