enable tests depending on assert is_css_present(css_selector)
STUD-1183
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Merge pull request #2240 from edx/sarina/fix-bug

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Merge pull request #2214 from zubair-arbi/zub/story/std1183-staticpagestest

enable tests depending on assert is_css_present(css_selector)
Merge remote-tracking branch 'edx/master'