Changed delete.php to use flash_error(), removed some HTML from languages/*

delete.php: 
- replace various $tMessage=... with flash_error()
- always redirect to the relevant page, even if an error happened
- fix error check in delete admin
- removed HTML formatting (<b>, <span>) from some error messages
- replaced check for pgsql + BEGIN/COMMIT/ROLLBACK with db_begin(),
  db_commit() and db_rollback()
- the smarty message.tpl is most probably superfluous

languages/*.lang:
- removed HTML (<span>) from messages used by delete.php

fetchmail.php, scripts/snippets/baseclass.php
- remove superfluous </span>


git-svn-id: https://svn.code.sf.net/p/postfixadmin/code/trunk@1036 a1433add-5e2c-0410-b055-b7f2511e0802

scripts/snippets/baseclass.php

@@ -204,7 +204,7 @@ class postfixadminBaseclass {
         $result = db_delete($this->table, $this->primarykey, $key);
         if ($result != 1)
         {
-            flash_error($PALANG['pDelete_delete_error']) . '</span>';
+            flash_error($PALANG['pDelete_delete_error']);
         } else {
             flash_info(sprintf($PALANG['pDelete_delete_success'],$account));
         }