Fix dependencies to the same versions as react-sdk

Otherwise Things Get Weird, eg. headers in the left panel end up in
the wrong place because the gemini scrollbar CSS has changed
between versions.

package.json

@@ -58,12 +58,12 @@
     "babel-runtime": "^6.11.6",
     "bluebird": "^3.5.0",
     "browser-request": "^0.3.3",
-    "draft-js": "^0.10.5",
+    "draft-js": "^0.11.0-alpha",
     "extract-text-webpack-plugin": "^0.9.1",
     "favico.js": "^0.3.10",
-    "gemini-scrollbar": "^1.5.3",
-    "gfm.css": "^1.1.2",
-    "highlight.js": "^9.12.0",
+    "gemini-scrollbar": "matrix-org/gemini-scrollbar#b302279",
+    "gfm.css": "^1.1.1",
+    "highlight.js": "^9.0.0",
     "matrix-js-sdk": "0.10.2-rc.1",
     "matrix-react-sdk": "0.12.3-rc.3",
     "modernizr": "^3.1.0",