OpenSEK is now FreeOSEK RTOS

A new name was requested on SourceForge for OpenSEK project, now it is called FreeOSEK RTOS.

FreeOSEK is a scalable solution for embedded system. FreeOSEK OS is based on OSEK RTOS specification (OSEK-VDX). FreeOSEK is now ported to Win/Posix (for simulation of embedded systems) and to ARM7 tested on LPC2468.