enhanced interactive role selection (trunk only)

[See cvs log for src/role.c for a much longer description.]

     When picking role, race, and so forth, new menu entries allow you to
pick any of the other items before the one currently being handled.  After
picking all four of race, role, gender, and alignment (or if you answered
'y' to "shall I pick for you?"), there is a followup prompt to confirm the
choices.  It's a menu which also provides a chance to rename the character.

     This has only been implemented in win/tty's player_selection(), with
some support code in the core that might be useful to other interfaces.
And so far, the chance to rename is only presented as a menu choice if
you've given an answer to "who are you?" prompt earlier during startup.
Also, ports that use pcmain.c aren't able to perform hero renaming yet.

doc/fixes35.0

@@ -448,6 +448,7 @@ win32gui: added menu options "Copy ASCII Screenshot To Clipboard" and "Save
 win32tty: support for 'selectsaved' option for menu of existing save files
 	to choose from at game startup
 tty: add window port routines for saving/restoring message history
+tty: enhanced role, race, &c selection during at start of new game
 smartphone: added "Type Cmd" command that allows to type arbitrary commands 
 	using phone keypad
 smartphone: added Q(quiver) command to "Attack" layout