assets.Html.getOriginalRelations: Don't fail when encountering empty inline <script> or <style>.
assets.Html.getOriginalRelations: Don't fail when encountering empty inline <script> or <style>.

jscinoz/assetgraph,assetgraph/assetgraph,slang800/assetgraph,slang800/assetgraph,papandreou/assetgraph,jscinoz/assetgraph,papandreou/assetgraph,papandreou/assetgraph,jscinoz/assetgraph