Refresh all docs (#298)

Change the discovery query to fetch all discovery docs, not just the
preferred ones.
diff --git a/docs/dyn/drive_v2.about.html b/docs/dyn/drive_v2.about.html
index 2ea777a..c175288 100644
--- a/docs/dyn/drive_v2.about.html
+++ b/docs/dyn/drive_v2.about.html
@@ -131,7 +131,7 @@
         "type": "A String", # The content type that this additional role info applies to.
       },
     ],
-    "user": { # The JSON template for a user. # The authenticated user.
+    "user": { # Information about a Drive user. # The authenticated user.
       "picture": { # The user's profile picture.
         "url": "A String", # A URL that points to a profile picture of this user.
       },
@@ -153,7 +153,7 @@
     "kind": "drive#about", # This is always drive#about.
     "name": "A String", # The name of the current user.
     "quotaBytesTotal": "A String", # The total number of quota bytes.
-    "remainingChangeIds": "A String", # The number of remaining change ids.
+    "remainingChangeIds": "A String", # The number of remaining change ids, limited to no more than 2500.
     "importFormats": [ # The allowable import formats.
       {
         "source": "A String", # The imported file's content type to convert from.