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

admin/report/configlog/index.php

@@ -104,6 +104,6 @@ foreach ($rs as $log) {
 }
 $rs->close();
 
-echo $OUTPUT->table($table);
+echo html_writer::table($table);
 
 echo $OUTPUT->footer();

admin/report/courseoverview/index.php

@@ -60,7 +60,7 @@
                            '<input type="text" name="numcourses" size="3" maxlength="2" value="'.$numcourses.'" />',
                            '<input type="submit" value="'.get_string('view').'" />') ;
 
-    echo $OUTPUT->table($table);
+    echo html_writer::table($table);
     echo '</div>';
     echo '</form>';
 
@@ -117,7 +117,7 @@
                 }
                 $table->data[] = $a;
             }
-            echo $OUTPUT->table($table);
+            echo html_writer::table($table);
         }
     }
     echo $OUTPUT->footer();

admin/report/questioninstances/index.php

@@ -122,7 +122,7 @@ if ($requestedqtype) {
             $totalhidden);
 
     // Print it.
-    echo $OUTPUT->table($table);
+    echo html_writer::table($table);
 }
 
 // Footer.

admin/report/security/index.php

@@ -92,7 +92,7 @@ if ($issue and ($result = $issue(true))) {
 
     $table->data[] = $row;
 
-    echo $OUTPUT->table($table);
+    echo html_writer::table($table);
 
     echo $OUTPUT->box($result->details, 'generalbox boxwidthnormal boxaligncenter'); // TODO: add proper css
 
@@ -121,7 +121,7 @@ if ($issue and ($result = $issue(true))) {
 
         $table->data[] = $row;
     }
-    echo $OUTPUT->table($table);
+    echo html_writer::table($table);
 }
 
 echo $OUTPUT->footer();