Make sure upgrade uses the same schema as installation.

- Removed vendor info in fields from schema.xml
- Mapped VARLONGCHAR to mediumtext
- Database upgrades now uses field attributes instead of vendor info.
- Updated app_cache_view files to conform to schema.sql

workflow/engine/classes/class.wsTools.php

@@ -470,7 +470,8 @@ class workspaceTools {
    */
   public function upgradeDatabase($checkOnly = false) {
     $systemSchema = System::getSystemSchema();
-    return $this->upgradeSchema($systemSchema);
+    $this->upgradeSchema($systemSchema);
+    return true;
   }