[css-grid] Clear out changes list. It needs some more items, but at least it's not old?

Author: fantasai

css-grid/Overview.bs

@@ -3555,20 +3555,8 @@ Acknowledgements</h2>
 Changes</h2>
 
 	The following significant changes were made since the
-	<a href="http://www.w3.org/TR/2013/WD-css3-grid-layout-20130402/">2 April 2013 Working Draft</a>.
+	<a href="http://www.w3.org/TR/2013/WD-css3-grid-layout-20130910/">10 September 2013 Working Draft</a>.
 
 	<ul>
-		<li>Redesigned <a>subgrid</a> feature.
-		<li>Renamed all the <a href="#placement">placement properties</a> and <a href="#grid-definition">grid-defining properties</a>.
-		<li>Added the 'grid-template' and 'grid' shorthands.
-		<li>Changed the syntax of <a href="#named-lines">named lines</a> to use parentheses and identifiers rather than strings.
-		<li>Made named grid areas <a href="#implicit-named-lines">imply named grid lines</a>.
-		<li><a href="#auto-margins">Margin alignment</a> now matches <a href="http://www.w3.org/TR/css3-flexbox">Flexbox</a> and <a href="http://www.w3.org/TR/css3-align">Box Alignment</a>.
-		<li>Percentages are no longer resolved like they are in table layout.
-		<li>Refined <a href="#abspos-items">definitions of absolutely-positioned elements</a> whose containing block is a grid container.
-		<li>Defined the <a href="#static-position">static position</a> of direct children of a <i>grid container</i>.
-		<li>Added an option for dense packing to 'grid-auto-flow'.
-		<li>Proposed 'grid-auto-position' property so that auto-stacking items can be controlled a bit better. (But see open issues on changing ''grid-auto-flow: none''.)
-		<li>Rewrote and fixed errors in the <a href="#auto-placement-algo">auto-placement algorithm</a>.
-		<li>Marked <a href="#visibility-collapse">grid row/column collapsing</a> as an open issue.
+		<li>Rewrote grid layout algorithm. This should be mostly editorial.
 	</ul>

css-grid/Overview.html

@@ -3527,22 +3527,10 @@ <h2 class="no-num heading settled heading" id=changes><span class=content>
 Changes</span><a class=self-link href=#changes></a></h2>
 
 <p>	The following significant changes were made since the
-	<a href=http://www.w3.org/TR/2013/WD-css3-grid-layout-20130402/>2 April 2013 Working Draft</a>.
+	<a href=http://www.w3.org/TR/2013/WD-css3-grid-layout-20130910/>10 September 2013 Working Draft</a>.
 
 <p>	<ul>
-		<li>Redesigned <a data-link-type=dfn href=#subgrid title=subgrid>subgrid</a> feature.
-		<li>Renamed all the <a href=#placement>placement properties</a> and <a href=#grid-definition>grid-defining properties</a>.
-		<li>Added the <a class=property data-link-type=propdesc href=#propdef-grid-template title=grid-template>grid-template</a> and <a class=property data-link-type=propdesc href=#propdef-grid title=grid>grid</a> shorthands.
-		<li>Changed the syntax of <a href=#named-lines>named lines</a> to use parentheses and identifiers rather than strings.
-		<li>Made named grid areas <a href=#implicit-named-lines>imply named grid lines</a>.
-		<li><a href=#auto-margins>Margin alignment</a> now matches <a href=http://www.w3.org/TR/css3-flexbox>Flexbox</a> and <a href=http://www.w3.org/TR/css3-align>Box Alignment</a>.
-		<li>Percentages are no longer resolved like they are in table layout.
-		<li>Refined <a href=#abspos-items>definitions of absolutely-positioned elements</a> whose containing block is a grid container.
-		<li>Defined the <a href=#static-position>static position</a> of direct children of a <a data-link-type=dfn href=#grid-container title="grid container">grid container</a>.
-		<li>Added an option for dense packing to <a class=property data-link-type=propdesc href=#propdef-grid-auto-flow title=grid-auto-flow>grid-auto-flow</a>.
-		<li>Proposed <a class=property data-link-type=propdesc href=#propdef-grid-auto-position title=grid-auto-position>grid-auto-position</a> property so that auto-stacking items can be controlled a bit better. (But see open issues on changing <a class=css data-link-type=propdesc href=#propdef-grid-auto-flow title=grid-auto-flow>grid-auto-flow: none</a>.)
-		<li>Rewrote and fixed errors in the <a href=#auto-placement-algo>auto-placement algorithm</a>.
-		<li>Marked <a href=#visibility-collapse>grid row/column collapsing</a> as an open issue.
+		<li>Rewrote grid layout algorithm. This should be mostly editorial.
 	</ul>
 
 <h2 class="no-ref no-num heading settled heading" id=conformance><span class=content>