Refresh all docs (#298)

Change the discovery query to fetch all discovery docs, not just the
preferred ones.
diff --git a/docs/dyn/sheets_v4.spreadsheets.values.html b/docs/dyn/sheets_v4.spreadsheets.values.html
index 6e051eb..f8d20f2 100644
--- a/docs/dyn/sheets_v4.spreadsheets.values.html
+++ b/docs/dyn/sheets_v4.spreadsheets.values.html
@@ -78,12 +78,18 @@
   <code><a href="#append">append(spreadsheetId, range=None, body, insertDataOption=None, valueInputOption=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Appends values to a spreadsheet. The input range is used to search for</p>
 <p class="toc_element">
+  <code><a href="#batchClear">batchClear(spreadsheetId, body, x__xgafv=None)</a></code></p>
+<p class="firstline">Clears one or more ranges of values from a spreadsheet.</p>
+<p class="toc_element">
   <code><a href="#batchGet">batchGet(spreadsheetId, valueRenderOption=None, majorDimension=None, ranges=None, dateTimeRenderOption=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Returns one or more ranges of values from a spreadsheet.</p>
 <p class="toc_element">
   <code><a href="#batchUpdate">batchUpdate(spreadsheetId, body, x__xgafv=None)</a></code></p>
 <p class="firstline">Sets values in one or more ranges of a spreadsheet.</p>
 <p class="toc_element">
+  <code><a href="#clear">clear(spreadsheetId, range, body, x__xgafv=None)</a></code></p>
+<p class="firstline">Clears values from a spreadsheet.</p>
+<p class="toc_element">
   <code><a href="#get">get(spreadsheetId, range, valueRenderOption=None, majorDimension=None, dateTimeRenderOption=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Returns a range of values from a spreadsheet.</p>
 <p class="toc_element">
@@ -175,6 +181,43 @@
 </div>
 
 <div class="method">
+    <code class="details" id="batchClear">batchClear(spreadsheetId, body, x__xgafv=None)</code>
+  <pre>Clears one or more ranges of values from a spreadsheet.
+The caller must specify the spreadsheet ID and one or more ranges.
+Only values are cleared -- all other properties of the cell (such as
+formatting, data validation, etc..) are kept.
+
+Args:
+  spreadsheetId: string, The ID of the spreadsheet to update. (required)
+  body: object, The request body. (required)
+    The object takes the form of:
+
+{ # The request for clearing more than one range of values in a spreadsheet.
+    "ranges": [ # The ranges to clear, in A1 notation.
+      "A String",
+    ],
+  }
+
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+Returns:
+  An object of the form:
+
+    { # The response when updating a range of values in a spreadsheet.
+    "spreadsheetId": "A String", # The spreadsheet the updates were applied to.
+    "clearedRanges": [ # The ranges that were cleared, in A1 notation.
+        # (If the requests were for an unbounded range or a ranger larger
+        #  than the bounds of the sheet, this will be the actual ranges
+        #  that were cleared, bounded to the sheet's limits.)
+      "A String",
+    ],
+  }</pre>
+</div>
+
+<div class="method">
     <code class="details" id="batchGet">batchGet(spreadsheetId, valueRenderOption=None, majorDimension=None, ranges=None, dateTimeRenderOption=None, x__xgafv=None)</code>
   <pre>Returns one or more ranges of values from a spreadsheet.
 The caller must specify the spreadsheet ID and one or more ranges.
@@ -325,6 +368,39 @@
 </div>
 
 <div class="method">
+    <code class="details" id="clear">clear(spreadsheetId, range, body, x__xgafv=None)</code>
+  <pre>Clears values from a spreadsheet.
+The caller must specify the spreadsheet ID and range.
+Only values are cleared -- all other properties of the cell (such as
+formatting, data validation, etc..) are kept.
+
+Args:
+  spreadsheetId: string, The ID of the spreadsheet to update. (required)
+  range: string, The A1 notation of the values to clear. (required)
+  body: object, The request body. (required)
+    The object takes the form of:
+
+{ # The request for clearing a range of values in a spreadsheet.
+  }
+
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+Returns:
+  An object of the form:
+
+    { # The response when clearing a range of values in a spreadsheet.
+    "spreadsheetId": "A String", # The spreadsheet the updates were applied to.
+    "clearedRange": "A String", # The range (in A1 notation) that was cleared.
+        # (If the request was for an unbounded range or a ranger larger
+        #  than the bounds of the sheet, this will be the actual range
+        #  that was cleared, bounded to the sheet's limits.)
+  }</pre>
+</div>
+
+<div class="method">
     <code class="details" id="get">get(spreadsheetId, range, valueRenderOption=None, majorDimension=None, dateTimeRenderOption=None, x__xgafv=None)</code>
   <pre>Returns a range of values from a spreadsheet.
 The caller must specify the spreadsheet ID and a range.