Update gemspec.

loaf.gemspec

@@ -4,18 +4,18 @@ $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'loaf/version'
 
 Gem::Specification.new do |s|
-  s.name        = "loaf"
+  s.name        = 'loaf'
   s.version     = Loaf::VERSION.dup
-  s.authors     = ["Piotr Murach"]
+  s.authors     = ['Piotr Murach']
   s.email       = [""]
-  s.homepage    = "https://github.com/peter-murach/loaf"
-  s.summary     = %q{Loaf is a breadcrumb managing gem.}
-  s.description = %q{Loaf helps you manage breadcrumbs in your rails app. It aims to handle crumb data through easy dsl and expose it through view helpers without any assumptions about markup.}
+  s.homepage    = 'https://github.com/peter-murach/loaf'
+  s.summary     = %q{Loaf manages and displays breadcrumb trails in your Rails application.}
+  s.description = %q{Loaf manages and displays breadcrumb trails in your Rails app. It aims to handle breadcrumb data through easy dsl and expose it through view helpers without any assumptions about markup.}
 
   s.files         = `git ls-files`.split("\n")
   s.test_files    = `git ls-files -- {spec,features}/*`.split("\n")
   s.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
   s.require_paths = ["lib"]
 
-  s.add_dependency 'rails'
+  s.add_dependency 'rails', '>= 3.1'
 end