Moved code which extracts editable ranges to separate method and passed there cloned cached ranges array to avoid changing cache.
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Merge branch 't/11493'
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Merge branch 't/11536' into major
Use feature detection instead of browser detection.
Use ActiveXObject on IEs, because DOMParser has no support for XPath.
Fixed documentation issue.
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Merge branch 't/11390'
Merge branch 'master' into major
Added editor#addContentsCss() for wysiwygarea plugin.
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