Bugfixes and features for angband-2.9.6-alpha4.

init_vcs.dif    Bugfix:  Fix typo init_cvs -> init_vcs in main.c.
flowctrl.dif    Partial bugfix:  Turn off flow control for main-<cap,gcu,vcs>.c
main-vcs.dif    Bugfix/Feature:  main-vcs.c fixes.
keymap.dif      Feature:  Define cursor keys for main-<cap,vcs,sla>.c. 
store-prompt.dif Feature: Improve prompts in the stores.

As usual, feel free to delete this file when done.

-- Hallvard B. Furuseth <h.b.furuseth@usit.uio.no>




Comments copied from the top of each file:


====== init_vcs.dif ======
Bugfix:  Fix typo init_cvs -> init_vcs in main.c.


====== flowctrl.dif ======
Partial bugfix:  Turn off flow control for main-<cap,gcu,vcs>.c

^S halted the terminal instead of saving the game.

This may be needed in main-lsl.c and for USE_TCHARS in main-<cap,gcu>.c
too; I could not test these.  It is not needed for main-sla.c.
(But the non-X11 Unix modules can't be much used anyway, when such a bug
could remain undiscovered for so long time.)

BTW, maybe the way to turn off flow control for USE_TCHARS is to set
t_startc and t_stopc to (char)-1 instead of the values used in main-*.c?


====== main-vcs.dif ======
Bugfix/Feature:  main-vcs.c fixes.

The victory over main-sla.c went to my head, so I decided to do the
same to main-vcs.c.  The necessary changes are small (the 3 first
patches below), then comes various optional patches that I like.

1.  Bugfix:   Don't crash after Options page.
2.  Possible bugfix:  Place the cursor correctly.
3.  Feature:  Put the cursor at the bottom line when ^Z.
Optional:
4.  Cleanup:  Make main-vcs.c more readable.
5.  Feature:  Do not print the umber bottom edge.
6.  Detail:   Set cursor in one operation.
7.  Comment:  Remove 'VCS is not tested' comment from Makefile.std.

Patches #5 and #6 need patch #4 which needs patch #3.
The other patches are independent.


====== keymap.dif ======
Feature:  Define cursor keys for main-<cap,vcs,sla>.c. 

pref-gcu.prf contains common key definitions for the cursor keys,
numeric keypad & a few other keys.  Use these for CAP, VCS and SLA
as well as today's GCU and LSL.

This is admittedly the Wrong Way to do it; the Right Way would be to get
the cursor keys from the terminal's termcap entry.  But since main-gcu
is doing this anyway, I don't see any reason not to do it for other Unix
modules as well.


====== store-prompt.dif ======
Feature:  Improve prompts in the stores.

The x) command was too close to the g) text, and SPACE) missed a '.'.

Change from:
 ESC) Exit from Building.       g) Get/Purchase an item. x) eXamine an item.
 SPACE) Next page of stock      d) Drop/Sell an item.
to:
 ESC) Exit from Building.     g) Get/Purchase an item.   x) eXamine an item.
 SPACE) Next page of stock.   d) Drop/Sell an item.