Front-end website creation when SEF is enabled.

When the core Joomla SEF is enable, joomla may produce wrong encoding/decoding SEF url.
The problem occurs in the <Form action that are not processed by the Joomla SEF system plugin and that may have different URL than the one compute by the URL present in the menus.

To align the URL between the menu computed by Joomla and the URL present in the front-end website creation forms, we have computed all the form actions to provide the same SEF urls than the menu.

We also modified the internal redirection URL to compute the same menu SEF url and help Joomla decode them with the same algorithm.

The new SEF url compute in the front-end were tested on Joomla 1.5 and 1.6.
It also works with AceSEF, sh404SEF and JoomFish.
Remarks:

• In case of sh404SEF, don't forget to setup the Joomla 1.0.x "live_site" parameter in the configuration.php that is required by sh404SEF to display correctly the stylesheet and other images. See sh404SEF documentation.
• In case of JoomFish and SEF enabled it is recommended to install a fix concerning the HTML <base tag when # anchor is used.
  See http://www.metamodpro.com/software/jfsef for the download of the fix.

Bundled with Patch definition 1.2.43

Update the AceSEF patch to be compatible with AceSEF version 1.5.x