Updated dependencies

Use fork of otr.js (with updated webworker-threads) and use original snabbdom again

package.json

@@ -56,14 +56,14 @@
     "lodash": "4.17.4",
     "lodash-template-loader": "^2.0.0",
     "moment": "~2.18.1",
-    "otr": "0.2.16",
+    "otr": "jcbrand/otr",
     "pluggable.js": "2.0.0",
     "po2json": "^0.4.4",
     "requirejs": "2.3.5",
     "run-headless-chromium": "^0.1.1",
     "sinon": "^2.1.0",
     "sizzle": "^2.3.3",
-    "snabbdom": "jcbrand/snabbdom",
+    "snabbdom": "0.7.1",
     "snyk": "^1.21.2",
     "strophe.js": "1.2.14",
     "strophejs-plugin-disco": "0.0.1",