Da monster-commit of blocks version 2!

Code based on the work of Daryl Hawes for the blog module. Thanks, Daryl!

Please test the hell out of it as it's sure to have issues that need to be
ironed out.

admin/block.php

@@ -20,12 +20,12 @@
 
     require_variable($_REQUEST['block']);
     $blockid = intval($_REQUEST['block']);
-
-    if(($blockrecord = get_record('blocks', 'id', $blockid)) === false) {
+   
+    if(($blockrecord = blocks_get_record($blockid)) === false) {
         error('This block does not exist');
     }
 
-    $block = block_instance($blockrecord->name, NULL);
+    $block = block_instance($blockrecord->name);
     if($block === false) {
         error('Problem in instantiating block object');
     }