Move usual ActiveAdmin deps to gemspec

Author: elia

README.md

@@ -12,15 +12,21 @@ For more on Mongoid support in ActiveAdmin see [this issue](https://github.com/g
 
 Add this line to your application's Gemfile:
 
-    gem 'activeadmin-mongoid'
+```ruby
+gem 'activeadmin-mongoid'
+```
 
-And then execute:
+You can safely remove the following lines, since are already activeadmin-mongoid dependencies:
 
-    $ bundle
+```ruby
+gem 'activeadmin'
+gem 'meta_search', '>= 1.1.0.pre'
+gem 'sass-rails',  ['~> 3.1', '>= 3.1.4']
+```
 
-Or install it yourself as:
+And then execute:
 
-    $ gem install activeadmin-mongoid
+    $ bundle
 
 
 ## Contributing

activeadmin-mongoid.gemspec

@@ -18,4 +18,6 @@ Gem::Specification.new do |gem|
 
   gem.add_runtime_dependency 'mongoid',     '~> 2.0'
   gem.add_runtime_dependency 'activeadmin', '~> 0.4'
+  gem.add_runtime_dependency 'meta_search', '>= 1.1.0.pre'
+  gem.add_runtime_dependency 'sass-rails',  ['~> 3.1', '>= 3.1.4']
 end