[css-flexbox] Change min-width:auto to use the flex-basis when it's auto, not with width/height.

--HG--
extra : rebase_source : cc1b2514e290c80ca9bd5d18fed158db5ad8702b

Author: tabatkins

css-flexbox/Overview.bs

@@ -886,7 +886,7 @@ Implied Minimum Size of Flex Items</h3>
 			this keyword specifies as the minimum size the smallest of:
 
 			<ul>
-				<li>the computed 'width' ('height'), if that value is <a>definite</a>,
+				<li>the used 'flex-basis', if the computed 'flex-basis' was ''flex-basis/auto'',
 				<li>the computed 'max-width' ('max-height'), if that value is <a>definite</a>,
 				<li>if the item has no intrinsic aspect ratio, its <a>min-content size</a>,
 				<li>if the item has an intrinsic aspect ratio,

css-flexbox/Overview.html

@@ -246,7 +246,7 @@
 </p>
   <h1 class="p-name no-ref" id=title>CSS Flexible Box Layout Module Level 1</h1>
   <h2 class="no-num no-toc no-ref heading settled heading" id=subtitle><span class=content>Editor’s Draft,
-    <span class=dt-updated><span class=value-title title=20140627>27 June 2014</span></span></span></h2>
+    <span class=dt-updated><span class=value-title title=20140701>1 July 2014</span></span></span></h2>
   <div data-fill-with=spec-metadata><dl>
 	<dt>This version:
 	<dd><a class=u-url href=http://dev.w3.org/csswg/css-flexbox/>http://dev.w3.org/csswg/css-flexbox/</a>
@@ -1021,7 +1021,7 @@ <h3 class="heading settled heading" data-level=4.5 id=min-size-auto><span class=
 			this keyword specifies as the minimum size the smallest of:
 
 			<ul>
-				<li>the computed <a class=property data-link-type=propdesc href=http://dev.w3.org/csswg/css2/visudet.html#propdef-width title=width>width</a> (<a class=property data-link-type=propdesc href=http://dev.w3.org/csswg/css2/visudet.html#propdef-height title=height>height</a>), if that value is <a data-link-type=dfn href=#definite title=definite>definite</a>,
+				<li>the used <a class=property data-link-type=propdesc href=#propdef-flex-basis title=flex-basis>flex-basis</a>, if the computed <a class=property data-link-type=propdesc href=#propdef-flex-basis title=flex-basis>flex-basis</a> was <a class=css data-link-for=flex-basis data-link-type=maybe href=#valuedef-auto1 title=auto>auto</a>,
 				<li>the computed <a class=property data-link-type=propdesc href=http://dev.w3.org/csswg/css2/visudet.html#propdef-max-width title=max-width>max-width</a> (<a class=property data-link-type=propdesc href=http://dev.w3.org/csswg/css2/visudet.html#propdef-max-height title=max-height>max-height</a>), if that value is <a data-link-type=dfn href=#definite title=definite>definite</a>,
 				<li>if the item has no intrinsic aspect ratio, its <a data-link-type=dfn href=http://dev.w3.org/csswg/css-sizing-3/#min-content-measure title="min-content size">min-content size</a>,
 				<li>if the item has an intrinsic aspect ratio,