Remove meta_search from deps

It conflicts with Rails 4 dependencies and is already required by activeadmin 0.6.

Credit to @iameen for this change.

Author: elia

activeadmin-mongoid.gemspec

@@ -20,7 +20,6 @@ Gem::Specification.new do |gem|
 
   gem.add_runtime_dependency 'mongoid',     ['> 3.0', '< 5.0']
   gem.add_runtime_dependency 'activeadmin', '~> 0.6'
-  gem.add_runtime_dependency 'meta_search', '>= 1.1.0.pre'
   gem.add_runtime_dependency 'sass-rails',  ['>= 3.1.4', '< 5.0']
 
   gem.add_development_dependency 'rspec-rails',  '~> 2.7'