[css-values] Updated Changes.

--HG--
extra : rebase_source : 6c6224d2eaa91afa95331f02383a3c14af8a9205

Author: tabatkins

css-values/Overview.bs

@@ -1652,6 +1652,7 @@ Changes</h2>
   Changes since the <a href="http://www.w3.org/TR/2013/CR-css3-values-20130730/">30 July 2013 Candidate Recommendation</a> are:
 
   <ul>
+  	<li>Specified that, in the absence of font information, ''1ch'' equal ''.5em''.
   	<li>Added ''q'' unit.
     <li>Relaxed unnecessary restrictions on <<custom-ident>>.
         Require specs referencing it to be clear about excluded keywords,

css-values/Overview.html

@@ -1669,6 +1669,7 @@ <h2 class="no-num heading settled heading" id=changes><span class=content>
 <p>  Changes since the <a href=http://www.w3.org/TR/2013/CR-css3-values-20130730/>30 July 2013 Candidate Recommendation</a> are:
 
 <p>  <ul>
+  	<li>Specified that, in the absence of font information, <span class=css data-link-type=maybe title=1ch>1ch</span> equal <span class=css data-link-type=maybe title=.5em>.5em</span>.
   	<li>Added <a class=css data-link-type=maybe href=#q title=q>q</a> unit.
     <li>Relaxed unnecessary restrictions on <a class="production css-code" data-link-type=type href=#identifier-value title="<custom-ident>">&lt;custom-ident&gt;</a>.
         Require specs referencing it to be clear about excluded keywords,