Fixed #27 by making the pause/play button xpaths more specific.
Fixed #27 by making the pause/play button xpaths more specific.

gmelikov/browser-media-keys,miicha/browser-media-keys,miicha/browser-media-keys,carlin-q-scott/browser-media-keys,gmelikov/browser-media-keys,gmelikov/browser-media-keys,carlin-q-scott/browser-media-keys