Closes #3474 and removes now deprecated campaign-gallery.tpl.php
Fixes PHP Notice undefined variable when campaign does not have image
Fixes PHP Notice: Undefined index if field value doesn't exist
Merge pull request #3512 from aaronschachter/remove_campaign_gallery

Remove campaign gallery tpl
removed unnecessary right margin
ensure columned sections do not get compacted
Merge pull request #3513 from tjrosario/taxonomy-tweaks

Taxonomy tweaks