Support nodeJS 12.x (#360)

* Update .travis.yml

* compare message inserts rather than message

Author: mattbaileyuk

.travis.yml

@@ -1,6 +1,6 @@
 language: node_js
 node_js:
-- '11'
+- '12'
 - '10'
 - '8'
 - '6'

test/test-suite/groups/function-encodeUrl/case002.json

@@ -4,6 +4,7 @@
     "bindings": {},
     "error": {
         "code": "D3140",
-        "message": "Malformed URL passed to $encodeUrl(): \"\uD800\""
+        "functionName": "encodeUrl",
+        "value": "\uD800"
     }
 }

test/test-suite/groups/function-encodeUrlComponent/case002.json

@@ -4,6 +4,7 @@
     "bindings": {},
     "error": {
         "code": "D3140",
-        "message": "Malformed URL passed to $encodeUrlComponent(): \"\uD800\""
+        "functionName": "encodeUrlComponent",
+        "value": "\uD800"
     }
 }