git.rs: cleaning; render.rs: refactor to fit new git.rs library; test_render: initial commit; assets/*: update templates

assets/templates/repo/code.html

@@ -15,7 +15,7 @@
 			<tr>
 				<td><a class={{ entry.class }} href="/">{{ entry.path }}</a></td>
 				<td><a class=commit href="./commit/{{ entry.last_commit }}">
-					{{ entry.last_commit_short }}
+					{{ entry.last_commit_message }}
 				</a></td>
 				<td><time datetime="{{ entry.last_commit_time }}">
 					{{ entry.last_commit_time | date(format="%Y-%m-%d %H:%M")}}