Updating to Unity 2019.1.6f1.

Packages/manifest.json

 {
   "dependencies": {
-    "com.unity.ads": "3.0.3",
+    "com.unity.ads": "3.1.1",
-    "com.unity.multiplayer-hlapi": "1.0.2",
+    "com.unity.multiplayer-hlapi": "1.0.4",
-    "com.unity.textmeshpro": "2.0.0",
+    "com.unity.textmeshpro": "2.0.1",
     "com.unity.timeline": "1.0.0",
     "com.unity.xr.arcore": "2.1.0-preview.5",
     "com.unity.xr.arfoundation": "2.1.0-preview.3",

ProjectSettings/ProjectVersion.txt

-m_EditorVersion: 2019.1.1f1
-m_EditorVersionWithRevision: 2019.1.1f1 (fef62e97e63b)
+m_EditorVersion: 2019.1.6f1
+m_EditorVersionWithRevision: 2019.1.6f1 (f2970305fe1c)