Bug 981241 - Make the CSS category in the web console more flexible. r=msucan

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extra : rebase_source : b16bc990f1e8077ea0363626a63874c13fca4aff
Bug 981867 - Make the tooltip for the web console CSS category more general. r=msucan

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extra : rebase_source : 04a3b8aa1795f4c49a188e27e9f2d084d59195cd