Bump js-sdk to release 0.9.0

Author: lukebarnard1

package.json

@@ -71,7 +71,7 @@
     "isomorphic-fetch": "^2.2.1",
     "linkifyjs": "^2.1.3",
     "lodash": "^4.13.1",
-    "matrix-js-sdk": "0.9.0-rc.1",
+    "matrix-js-sdk": "0.9.0",
     "optimist": "^0.6.1",
     "prop-types": "^15.5.8",
     "querystring": "^0.2.0",