#171 first implementation of host serial ports: open, close, ioctrl working.
Merge branch 'master' into osek_mac
#171 implementation of host serial ports. Creation of sample serial echo for debug
Merge branch 'master' into osek_mac
#171 implementation of host serial ports. Las version with async signals, previous to change to thread
#171 implementation of host serial ports. Full operational version with threads. Non working setup serial port parameters
#165 reset stack of the projects to 512 bytes
#172 Removed reference to os_internal.h in ciaaDriverUart.c. Removed references to PreCallServices and PostCallServices.
#172 Elimination of unnecessary macro, correction of serial_echo documentation.
remove trailing spaces
Merge branch 'osek_mac' of https://github.com/ciaa/Firmware into osek_mac

Conflicts:
	modules/platforms/x86/src/ciaaDriverUart.c
#165 calculate stack size based on sizeof
Merge pull request #175 from ciaa/osek_mac

#175 merge serial echo and mac env. branch :)