MDL-21652 html_table rendering refactored

* class html_component does not exist any more
* class html_table rendered via html_writer::table()
* html_table, html_table_row and html_table_cell have public $attributes property to set their CSS classes
* dropped rotateheaders feature, should be added again after more research of possible ways (<svg> is not nice IMHO)
* dropped possibility to define CSS classes for table heading, body and footer - can be easily done and better done using just table class and context

mod/wiki/index.php

@@ -101,7 +101,7 @@
 
     echo "<br />";
 
-    echo $OUTPUT->table($table);
+    echo html_writer::table($table);
 
 /// Finish the page
 

mod/wiki/removepages.html

@@ -14,7 +14,7 @@
 <input type="hidden" name="wikipage" value="<?php print $wikipage?>" />
 <?php
   $remove_table=wiki_admin_remove_list($form->listall);
-  echo $OUTPUT->table($remove_table);
+  echo html_writer::table($remove_table);
 ?>
 <div class="boxaligncenter">
 <?php

mod/wiki/setpageflags.html

@@ -11,7 +11,7 @@
 <input type="hidden" name="wikipage" value="<?php print $wikipage?>" />
 <?php
   $pageflags_table=wiki_admin_setpageflags_list($pageflagstatus);
-  echo $OUTPUT->table($pageflags_table);
+  echo html_writer::table($pageflags_table);
 ?>
 <br />
 <div class="boxaligncenter">

mod/wiki/strippages.html

@@ -11,7 +11,7 @@
 <input type="hidden" name="wikipage" value="<?php print $wikipage?>" />
 <?php
   $strip_table=wiki_admin_strip_list($form->pagestostrip, $form->version, $err);
-  echo $OUTPUT->table($strip_table);
+  echo html_writer::table($strip_table);
 ?>
 <div class="boxaligncenter">
 <?php