[Bug-wget] [Bug-Wget][Patch] Implement --show-progress

[Darshit Shah]

Recently we received a feature request fromt he good guys at RedHat.
I've personally wanted this feature implemented in master for a while
now and was maintaining a hacked up version of the patch to do so
myself. After some cleaning up, I submitted a patch some time ago.

Here, is v2 of that patch. Since I'm using a different thread for
this, I'll just explain all the changes here.

The first patch is essentially Giuseppe's patch on parallel-wget
merged into master. It splits the progress implementation into
separate functions for update and draw which I think is a very good
idea.

The second patch is mostly my own work. It does two important things,
which probably should be different patches, but they are so
intertwined, that I decided to turn it into a single patch.

First of all, we implement the new --show-progress switch which can be
used to force Wget into displaying the progress bar in any verbosity
mode. Since the default output hasn't been changed in any verbosity
mode, no one can complain I broke their scripts.
Secondly, I edit the \default\ progress-bar implementation in Wget. It
now displays the local filename of the file being downloaded in the
progress bar itself. This is a very useful thing to have in
conjunction with the --show-progress switch. Now, when I force Wget to
display the progress bar in --quiet mode, I can still see the name of
the file that will be created.

Since Wget displays the dot bar by default when output has been
redirected to a file, this should not break any scripts once again.

One small section of the code in the second patch, the one that
implements the filename ticker in the progress bar, was copied for
Giuseppe's patch on parallel-wget.
@Giuseppe: Attribute yourself on that the way you see fit.

All criticisms and reviews welcome. :)
-- 
Thanking You,
Darshit Shah

0002-Update-progress-bar-image-and-implement-show-progres.patch
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0001-progress-Split-update-into-update-and-draw.patch
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