Stop using mattr_accessor, fixes up to the postgres :limit issue.

Appraisals

@@ -1,7 +1,7 @@
 appraise "rails-3" do
-  gem "rails", "3.2.13"
+  gem "rails", "3.2.16"
 end
 
 appraise "rails-4" do
-  gem "rails", "4.0.0.beta1"
+  gem "rails", "4.0.2"
 end

README.md

@@ -261,6 +261,8 @@ CSS:
 
 ## Configuration
 
+Configuration can be done using the initializer provided by running `rails generate acts_as_taggable_on:install`. The below options can be set in the setup block provided or directly on `ActsAsTaggableOn`. Options are as follows:
+
 If you would like to remove unused tag objects after removing taggings, add:
 
 ```ruby

lib/acts-as-taggable-on.rb

@@ -6,24 +6,17 @@
 require "digest/sha1"
 
 module ActsAsTaggableOn
-  mattr_accessor :delimiter
-  @@delimiter = ','
+  include ActiveSupport::Configurable
 
-  mattr_accessor :force_lowercase
-  @@force_lowercase = false
-
-  mattr_accessor :force_parameterize
-  @@force_parameterize = false
-
-  mattr_accessor :strict_case_match
-  @@strict_case_match = false
-
-  mattr_accessor :remove_unused_tags
-  self.remove_unused_tags = false
+  config_accessor(:delimiter)           { ',' }
+  config_accessor(:force_lowercase)    { false }
+  config_accessor(:force_parameterize) { false }
+  config_accessor(:strict_case_match)  { false }
+  config_accessor(:remove_unused_tags) { false }
 
   def self.glue
-    delimiter = @@delimiter.kind_of?(Array) ? @@delimiter[0] : @@delimiter
-    delimiter.ends_with?(" ") ? delimiter : "#{delimiter} "
+    glue = delimiter.kind_of?(Array) ? delimiter[0] : delimiter
+    glue.ends_with?(" ") ? glue : "#{glue} "
   end
 
   def self.setup

lib/generators/acts_as_taggable_on/install/install_generator.rb

@@ -0,0 +1,14 @@
+module ActsAsTaggableOn
+  module Generators
+    class InstallGenerator < Rails::Generators::Base
+      source_root File.expand_path("../../templates", __FILE__)
+      desc "Creates the ActsAsTaggableOn initializer for your application"
+
+      def copy_initializer
+        template "acts_as_taggable_on_initializer.rb", "config/initializers/acts_as_taggable_on.rb"
+
+        puts 'Install completed. Configure ActsAsTaggableOn in config/initializers/acts_as_taggable_on.rb'
+      end
+    end
+  end
+end

lib/generators/acts_as_taggable_on/install/templates/acts_as_taggable_on_initializer.rb

@@ -0,0 +1,22 @@
+ActsAsTaggableOn.setup do |config|
+  # The delimiter can be set as a single string or an array or strings.
+  # If an array is set, any of the strings in the array can be used to separate
+  # tags, but the first item in the array will be used as the default when
+  # displaying tag lists. The default is ','.
+  # config.delimiter = [',', ';']
+
+  # Setting +force_lowercase+ to true will downcase tag names when saved.
+  # Default is false.
+  # config.force_lowercase = true
+
+  # Set to true if you would like to remove unused tag objects after removing
+  # taggings. Default is false.
+  # config.remove_unused_tags = true
+
+  # Set to true to parameterize tags before saving them. Default is false.
+  # config.force_parameterize = true
+
+  # Set to true if tags should be case-sensitive, i.e. they will not use LIKE
+  # queries for creation. Default is false.
+  # config.strict_case_match = true
+end