* dcache.c: Change default value of remotecache to off. It just

	* dcache.c:  Change default value of remotecache to off.  It just
	screws up too many targets.
	* sparcl-stub.c:  Add prototypes to many forward decls.
	* Create private copies of strlen, strcpy, and memcpy to prevent
	chaos when user steps into them.
	* (trap_low handle_exception):  Clean up DSU support code
	(hardware breakpoints).  Move lots of stuff from asm-land to
	C-land (make it much easier to #ifdef if necessary).  Also, use
	trap 255 to get into break mode instead of doing a DSU register
	write, which may trash the register.
	* (putpacket):  Don't check return value of putDebugChar.  It
	returns void...