Support Day of Month argument

I've tested this modification in two Drupal installs as a workaround for my problem and it performs as it should. I see no issues with this patch as it stands, especially since it follows the form of the other arguments, such as year and month.

Please commit.

Thanks, guardian, for posting.

I have just coded up this feature for Views 2 on Drupal 6. It seems to work for me, but would be nice if someone else could test it.

For some reason the day displayed in the title was off by one, and I had to add one to correct it. I'm not sure why this is the case since I based it on the created_month field and I would expect the day and month arguments to behave the same.

I wonder if this patch creates the following warnings on my site:

warning: Invalid argument supplied for foreach() in /home/1/v/vogol/www/includes/menu.inc on line 376.
warning: Invalid argument supplied for foreach() in /home/1/v/vogol/www/includes/menu.inc on line 376.

Except from that it works as advertized.

The Views 2 patch should probably be posted as a separate issue (referring back to this one if necessary) in order to prevent the original patch here from getting (more) lost. =)

I have posted the Views 2 patch here: http://drupal.org/node/298500

At this time, only security fixes will be made to the 5.x version of Views.