more robust matchMedia
matchMedia return true on empty string, throw on zero arguments
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Merge pull request #58 from lvivier/master

More robust matchMedia
Fixing wrong Function.prototype.bind behavior with Array arguments
Merge pull request #61 from mdevils/master

Fixing wrong Function.prototype.bind behavior with Array arguments
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of github.com:Financial-Times/polyfill-service