Rakefile in mspire-0.6.2 vs Rakefile in mspire-0.6.6

@@ -12,9 +12,10 @@
   gem.description = %Q{mass spectrometry proteomics, lipidomics, and tools, a rewrite of mspire, merging of ms-* gems}
   gem.email = "[e-mail]"
   gem.authors = ["John T. Prince", "Simon Chiang"]
   gem.add_dependency "nokogiri", "~> 1.5"
   gem.add_dependency "bsearch", ">= 1.5.0"
+  gem.add_dependency "andand", ">= 1.3.1"
   gem.add_dependency "obo", ">= 0.1.0"
   gem.add_development_dependency "rspec", "~> 2.6"
   gem.add_development_dependency "jeweler", "~> 1.5.2"
   gem.add_development_dependency "rcov", ">= 0"
 end