* Makefile.in (VERSION): Bump to 4.5.3

	* Makefile.in (VERSION):  Bump to 4.5.3
	* Makefile.in (DEMANGLE_OPTS):  Remove obsolete -Dnounderscore
	* Makefile.in (demangle):  New target to create standalone
	demangler with same code and options as internal demangler.
	* cplus-dem.c:  Massive restructuring, rewriting, cleanups, etc
	to support ARM style and Lucid style demangling, improve
	maintainability, fix several demangling bugs.  More changes
	to follow.
	* defs.h (strstr):  Add ANSI compatible prototype.
	* valprint.c (type_print_1):  Demangle using ansi option.
	* config/ncr3000.mt (DEMANGLE_OPTS):  Remove -Dnounderscore.