Code layout + upgrade rspec

Author: elia

activeadmin-mongoid.gemspec

@@ -18,11 +18,11 @@ Gem::Specification.new do |gem|
   gem.version       = ActiveAdmin::Mongoid::VERSION
   gem.license       = 'MIT'
 
-  gem.add_runtime_dependency 'mongoid',     ['> 3.0', '< 5.0']
-  gem.add_runtime_dependency 'activeadmin', '~> 0.6'
+  gem.add_runtime_dependency 'mongoid',         ['> 3.0', '< 5.0']
+  gem.add_runtime_dependency 'activeadmin',     '~> 0.6.0'
   gem.add_runtime_dependency 'jquery-rails',    '>= 3.0.0'
   gem.add_runtime_dependency 'jquery-ui-rails', '>= 4.0.0'
-  gem.add_runtime_dependency 'sass-rails',  ['>= 3.1.4', '< 5.0']
+  gem.add_runtime_dependency 'sass-rails',      ['>= 3.1.4', '< 5.0']
 
-  gem.add_development_dependency 'rspec-rails',  '~> 2.7'
+  gem.add_development_dependency 'rspec-rails',  '~> 2.14'
 end

lib/active_admin/mongoid/document.rb

@@ -46,7 +46,6 @@ class << self
     end
 
     self.primary_key ||= [:_id]
-
   end
 
   module ClassMethods