Fix selected pivot header styles to show different opacity properly
Merge branch 'master' into daevans/fix-pivot
Increase specificity of selectors to make pivot header work properly
Merge branch 'master' into phosphoer/fix-pivot
Merge branch 'master' into phosphoer/fix-pivot
Revert order of style attributes in pivot styles
Fix base tests to work on Firefox.

Resolves #118.
Merge remote-tracking branch 'upstream/master'