Added a server module for clients and a mail plugin.

- Add some functionallity to MySQL class

* Cleanup some stuff into login/index.php like globals
* Add errors to the lang files

- Fixed several bugs.

Added a demo client to test the remoting framework.

Several fixes to avoid strict warnings. Made a variable public in db_mysql.inc.php. Added missing language tokens to en_users.lng

* tidy tpl.php , removed $conf global 

* introduciton ISPC_WEB_PATH and ISPC_THEMES_PATH

* Adding new data schema (to be moved shortly
* no more $conf['classpath']

Fixed the uses function in app.inc.php

Added a variable check in app.inc.php

* Small tweaks and a warning TODO

* Minor tweaks

* made php5

* Minor tweaks to app
* Made $conf global in teh tempalte class (its not global in the loader function either)