* Unicode support in strings

	* write a decent Dictionary
	- write a Pointer_hash template

	* Array::slice() upper too

	* fix ambiguous String constructor overloads, e.g.:
	  String( int ) and String( char ), use 
	
	class String { 
		explicit String(int);
	}

	* Automake, libtool

	* disable this auto conv: const pointer -> bool -> string

	* Pointer_array

	* PCursor -> Pointer_cursor / PointerCursor ?

	* efficient copy cons for List

	* extend Interval

	* use template handle in handle.hh for strings?

	* move towards gnu or STL?

		parsestream.h
		vector.h

	* lgetopt: cmd -, or cmd --