Implemented EMCY objects.
Added emcy.c and emcy.h
Modified data.h for necessary variables.
Added some EMCY message sendings in TestMasterSlave example.
Modified configure script to define EMCY_MAX_ERRORS.
Modified python scripts to make 1003h object always available (with a callback).

/* 
Define the i/o port global symbol 
*/

.globl _io_ports
_io_ports=0x0000	
	
/* 
0x0000 is the default mapping at reset. (it is 0x1000 for 68hc11)
*/