```ruby
$:.push File.expand_path("../lib", __FILE__)

# Maintain your gem's version:
require "magic_grid/version"

# Describe your gem and declare its dependencies:
Gem::Specification.new do |s|
  s.name        = "magic_grid"
  s.version     = MagicGrid::VERSION
  s.authors     = ["Ryan Graham"]
  s.email       = ["r.m.graham@gmail.com"]
  s.homepage    = "https://github.com/rmg/magic_grid"
  s.summary     = "Simple collection displaying with pagination using will_paginate"
  s.description = "Simple collection displaying with pagination using will_paginate"
  s.has_rdoc    = 'yard'

  s.files = Dir["lib/**/*"] + ["MIT-LICENSE", "Rakefile", "README.md"]
  s.test_files = Dir["{spec,test}/**/*"] - Dir["test/dummy/tmp/**/*", "test/dummy/db/*.sqlite3", "test/dummy/log/*.log"]

  s.add_dependency "rails", ">= 3.0"
  s.add_dependency "jquery-rails" , ">= 1.0.17"

  s.add_development_dependency "rake", "~> 0.9.2"
  s.add_development_dependency "tarantula", "~> 0.4.0"
  s.add_development_dependency "rspec", "~> 2.11.0"
end
```

Drop Rails 3.0 from gemspec, it doesn't work
user
```ruby
$:.push File.expand_path("../lib", __FILE__)

# Maintain your gem's version:
require "magic_grid/version"

# Describe your gem and declare its dependencies:
Gem::Specification.new do |s|
  s.name        = "magic_grid"
  s.version     = MagicGrid::VERSION
  s.authors     = ["Ryan Graham"]
  s.email       = ["r.m.graham@gmail.com"]
  s.homepage    = "https://github.com/rmg/magic_grid"
  s.summary     = "Simple collection displaying with pagination using will_paginate"
  s.description = "Simple collection displaying with pagination using will_paginate"
  s.has_rdoc    = 'yard'

  s.files = Dir["lib/**/*"] + ["MIT-LICENSE", "Rakefile", "README.md"]
  s.test_files = Dir["{spec,test}/**/*"] - Dir["test/dummy/tmp/**/*", "test/dummy/db/*.sqlite3", "test/dummy/log/*.log"]

  s.add_dependency "rails", ">= 3.1"
  s.add_dependency "jquery-rails" , ">= 1.0.17"

  s.add_development_dependency "rake", "~> 0.9.2"
  s.add_development_dependency "tarantula", "~> 0.4.0"
  s.add_development_dependency "rspec", "~> 2.11.0"
end
```
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