Bump fluxport-controller version to include bugfix

Author: David White

package.json

@@ -72,7 +72,7 @@
     "docs": "jsdoc -d docs --configure jsconf.json -r"
   },
   "dependencies": {
-    "@megachips/fluxport-controller": "^0.0.19",
+    "@megachips/fluxport-controller": "^0.0.20",
     "@megachips/nat-upnp": "^1.1.1",
     "apicache": "~1.6.3",
     "archiver": "~6.0.1",