Merge pull request #554 from ebenenglish/update-bootstrap

update blacklight.gemspec to use bootstrap-sass-2.3.1 and above

Author: jcoyne

blacklight.gemspec

@@ -28,7 +28,7 @@ Gem::Specification.new do |s|
   s.add_dependency "rsolr",     "~> 1.0.6"  # Library for interacting with rSolr.
   s.add_dependency "kaminari", "~> 0.13"  # the pagination (page 1,2,3, etc..) of our search results
   s.add_dependency "sass-rails"
-  s.add_dependency "bootstrap-sass", "~> 2.2.0"
+  s.add_dependency "bootstrap-sass", ">= 2.2.0", "< 2.4"
   s.add_development_dependency "jettywrapper", ">= 1.4.1"
   s.add_development_dependency "rspec-rails"
 end