I am just letting you know I've fixed licences for the following packages:
rubygem-rack to MIT and (Ruby or BSD)
rubygem-rails-doc to MIT and (MIT or GPL+)
rubygem-railties to MIT
rubygem-thread_safe to ASL 2.0 and Public Domain
rubygem-erubis-doc to MIT and BSD
rubygem-i18n to MIT and (BSD or Ruby)
rubygem-jquery-rails to MIT
rubygem-diff-lcs to (GPLv2+ or Artistic or MIT) and (GPLv2+ or Artistic or Ruby or BSD)
and (Artistic or Ruby or BSD)*
Thanks goes to Vit, who spotted them.
* Will do when I get commit rights.