message: bump js-sdk for webrtc
diff: "isomorphic-fetch": "^2.2.1",
  "linkifyjs": "^2.1.3",
  "lodash": "^4.13.1",
  - "matrix-js-sdk": "0.7.9",
  + "matrix-js-sdk": "0.7.10",
  "optimist": "^0.6.1",
  "q": "^1.4.1",
  "react": "^15.4.0",
  