Bump version to 1.0.9; update JSON schemas; add new APIs

etc/api/tasks/v1/tasks-api.json

@@ -17,7 +17,7 @@
     "description": "Manages your tasks and task lists.", 
     "discoveryVersion": "v1", 
     "documentationLink": "https://developers.google.com/google-apps/tasks/firstapp", 
-    "etag": "\"VPK3KBfpaEgZ16pozGOoMYfKc0U/5hf7l4OXls843duAMQrmw2lOdP8\"", 
+    "etag": "\"9eZ1uxVRThTDhLJCZHhqs3eQWz4/sib0TfOU9SmOWm02eMFRVq-fFck\"", 
     "icons": {
         "x16": "https://www.google.com/images/icons/product/tasks-16.png", 
         "x32": "https://www.google.com/images/icons/product/tasks-32.png"
@@ -515,7 +515,7 @@
             }
         }
     }, 
-    "revision": "20190222", 
+    "revision": "20190628", 
     "rootUrl": "https://www.googleapis.com/", 
     "schemas": {
         "Task": {
@@ -531,7 +531,7 @@
                     "type": "boolean"
                 }, 
                 "due": {
-                    "description": "Due date of the task (as a RFC 3339 timestamp). Optional.", 
+                    "description": "Due date of the task (as a RFC 3339 timestamp). Optional. The due date only records date information; the time portion of the timestamp is discarded when setting the due date. It isn't possible to read or write the time that a task is due via the API.", 
                     "format": "date-time", 
                     "type": "string"
                 },