[dev] ansel gallery pager

[Ben Chavet]

Here is a very elementary pager feature for the thumbnail gallery view.  I'm not
so sure I like how the 'next' and 'prev' links look, so I'll play around with
those a bit when I have time.  The important part is that it works :)  It might
be nice to have direct links to different pages.

I added a 'page' variable that view.php looks for.  It defaults to 0 if it is
not there (0 being the first page).  I think I got all of the links that need
to have page specified, but I may have missed some.

Files modified:
ansel/config/prefs.php.dist
ansel/templates/crop/crop.inc
ansel/templates/image/edit_image.inc
ansel/templates/image/preview_image.inc
ansel/templates/view/gallery.inc
ansel/templates/view/navbar-image.inc
ansel/view.php
ansel/image.php
ansel/crop.php

For some reason, cvs did not want to do diffs for
ansel/templates/view/gallery.inc, so the entire file is attached.

--Ben
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