Add new page: prepopulate fields from http get parameters

[mvlcek]

For my I18N plugin I needed to call the edit page in a way that some meta data was prefilled.
In order to do this, I needed to patch the admin/edit.php:

Code:

...
if ($id)
{
  ...
}
else
{
  // --- add the following lines
  if (isset($_GET['parent'])) $parent = $_GET['parent'];
  if (isset($_GET['template'])) $template = $_GET['template'];
  if (isset($_GET['metak'])) $metak = $_GET['metak'];
  if (isset($_GET['metad'])) $metad = $_GET['metad'];
  if (isset($_GET['menu-enable'])) $menuStatus = $_GET['menu-enable'];
  if (isset($_GET['menu-order'])) $menuOrder = $_GET['menu-order'];
  if (isset($_GET['private'])) $private = $_GET['private'];
  if (isset($_GET['title'])) $title = $_GET['title'];
  if (isset($_GET['menu'])) $menu = $_GET['menu'];
  if (isset($_GET['newid'])) $url = $_GET['newid'];
  // --- add end
  $buttonname = $i18n['BTN_SAVEPAGE'];
}
...

It would be nice to include this in the next release to allow plugins to prepopulate fields to simplify the use of the CMS.