Add a spine-tag-template class to main in tag.php
Use the post article template in tag.php
Remove unnecessary replacement of defaults for paginate_links()

The functionality we were adding in most of these extra arguments
was the exact functionality provided by WordPress core.
Revert "Remove unnecessary replacement of defaults for paginate_links()"

These changes only work with WordPress 4.0, not yet with 3.9.1

This reverts commit 970e698ff996cf9ef0f147a4e4a69c7aa8a30544.
Cleanup pagination generation for category template

Makes use of $wp_query and $paged to determine where we are in
navigation. Removes some of the default settings that we do not
need to provide.
Use index.php for all default archives, differentiate with class

Rather than maintaining identical templates through tag.php,
category.php, archive.php, and index.php, we can use index.php
to serve all archive requests.

If at any point we decide differen HTML markup is necessary for
a specific view, we can then break these out.
Pass post_format to the articles/post template part
Provide pagination on all archive pages
Remove unused archive, category, and tag templates
Wrap pagination on index template with footer, style centered
Merge pull request #77 from washingtonstateuniversity/template-cleanup

[PR] Reduce archive templates in favor of index.php, fix pagination