deps - bump some bugfixes

package.json

@@ -131,7 +131,7 @@
     "iframe-stream": "^3.0.0",
     "inject-css": "^0.1.1",
     "jazzicon": "^1.2.0",
-    "json-rpc-engine": "^3.7.0",
+    "json-rpc-engine": "^3.7.1",
     "json-rpc-middleware-stream": "^1.0.1",
     "lodash.debounce": "^4.0.8",
     "lodash.memoize": "^4.1.2",
@@ -187,7 +187,7 @@
     "shallow-copy": "0.0.1",
     "sw-controller": "^1.0.3",
     "sw-stream": "^2.0.2",
-    "swappable-obj-proxy": "^1.0.1",
+    "swappable-obj-proxy": "^1.0.2",
     "textarea-caret": "^3.0.1",
     "through2": "^2.0.3",
     "valid-url": "^1.0.9",