Fix several issues for Linux around casting SDKManager to concrete class: mostly with reading devices.xml which Unix does not support. Migrated ISDKManager#getMinimumSupportedSBSv2Version() to API. Can now import and create Symbian projects.

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.0"?>

<!--
 <copyright>
 </copyright>

 $Id: plugin.xml,v 1.1 2009/02/05 00:31:08 wpaul Exp $
-->

<plugin>
</plugin>