hgweb: show changeset age in more places (gitweb and monoblue)

hgweb: show changeset age in more places (gitweb and monoblue)

mercurial.js has a process_dates() function that calculates relative age for a
given date, it works for all elements with "age" css class. If those elements
also have "date" css class, the original text is preserved and age is added at
the end.

This patch adds these two css classes in some pages in gitweb and monoblue that
weren't already using this feature.

--- a/mercurial/templates/gitweb/summary.tmpl	Sun Nov 19 05:34:50 2017 +0100
+++ b/mercurial/templates/gitweb/summary.tmpl	Tue Nov 21 20:28:57 2017 +0800
@@ -31,7 +31,7 @@
 <table cellspacing="0">
 <tr><td>description</td><td>{desc}</td></tr>
 <tr><td>owner</td><td>{owner|obfuscate}</td></tr>
-<tr><td>last change</td><td>{lastchange|rfc822date}</td></tr>
+<tr><td>last change</td><td class="date age">{lastchange|rfc822date}</td></tr>
 </table>
 
 <div><a  class="title" href="{url|urlescape}shortlog{sessionvars%urlparameter}">changes</a></div>

--- a/mercurial/templates/monoblue/changeset.tmpl	Sun Nov 19 05:34:50 2017 +0100
+++ b/mercurial/templates/monoblue/changeset.tmpl	Tue Nov 21 20:28:57 2017 +0800
@@ -44,7 +44,7 @@
         <dt>author</dt>
         <dd>{author|obfuscate}</dd>
         <dt>date</dt>
-        <dd>{date|rfc822date}</dd>
+        <dd class="date age">{date|rfc822date}</dd>
         {branch%changesetbranch}
         <dt>changeset {rev}</dt>
         <dd><a href="{url|urlescape}rev/{node|short}{sessionvars%urlparameter}">{node|short}</a></dd>

--- a/mercurial/templates/monoblue/fileannotate.tmpl	Sun Nov 19 05:34:50 2017 +0100
+++ b/mercurial/templates/monoblue/fileannotate.tmpl	Tue Nov 21 20:28:57 2017 +0800
@@ -42,7 +42,7 @@
         <dt>author</dt>
         <dd>{author|obfuscate}</dd>
         <dt>date</dt>
-        <dd>{date|rfc822date}</dd>
+        <dd class="date age">{date|rfc822date}</dd>
         {branch%filerevbranch}
         <dt>changeset {rev}</dt>
         <dd><a href="{url|urlescape}rev/{node|short}{sessionvars%urlparameter}">{node|short}</a></dd>

--- a/mercurial/templates/monoblue/filerevision.tmpl	Sun Nov 19 05:34:50 2017 +0100
+++ b/mercurial/templates/monoblue/filerevision.tmpl	Tue Nov 21 20:28:57 2017 +0800
@@ -42,7 +42,7 @@
         <dt>author</dt>
         <dd>{author|obfuscate}</dd>
         <dt>date</dt>
-        <dd>{date|rfc822date}</dd>
+        <dd class="date age">{date|rfc822date}</dd>
         {branch%filerevbranch}
         <dt>changeset {rev}</dt>
         <dd><a class="list" href="{url|urlescape}rev/{node|short}{sessionvars%urlparameter}">{node|short}</a></dd>

--- a/mercurial/templates/monoblue/summary.tmpl	Sun Nov 19 05:34:50 2017 +0100
+++ b/mercurial/templates/monoblue/summary.tmpl	Tue Nov 21 20:28:57 2017 +0800
@@ -34,7 +34,7 @@
         <dt>owner</dt>
         <dd>{owner|obfuscate}</dd>
         <dt>last change</dt>
-        <dd>{lastchange|rfc822date}</dd>
+        <dd class="date age">{lastchange|rfc822date}</dd>
     </dl>
 
     <h2><a href="{url|urlescape}shortlog{sessionvars%urlparameter}">Changes</a></h2>

--- a/tests/test-hgweb-commands.t	Sun Nov 19 05:34:50 2017 +0100
+++ b/tests/test-hgweb-commands.t	Tue Nov 21 20:28:57 2017 +0800
@@ -1572,7 +1572,7 @@
   <table cellspacing="0">
   <tr><td>description</td><td>unknown</td></tr>
   <tr><td>owner</td><td>&#70;&#111;&#111;&#32;&#66;&#97;&#114;&#32;&#60;&#102;&#111;&#111;&#46;&#98;&#97;&#114;&#64;&#101;&#120;&#97;&#109;&#112;&#108;&#101;&#46;&#99;&#111;&#109;&#62;</td></tr>
-  <tr><td>last change</td><td>Thu, 01 Jan 1970 00:00:00 +0000</td></tr>
+  <tr><td>last change</td><td class="date age">Thu, 01 Jan 1970 00:00:00 +0000</td></tr>
   </table>
   
   <div><a  class="title" href="/shortlog?style=gitweb">changes</a></div>