move some files into spec/support and include ModelHelpers in config

spec/spec_helper.rb

@@ -6,10 +6,11 @@ require 'active_record'
 require 'action_view'
 require 'timecop'
 require 'rspec_tag_matchers'
-require 'model_helpers'
 
 require 'validates_timeliness'
-require 'test_model'
+
+require 'support/test_model'
+require 'support/model_helpers'
 
 ValidatesTimeliness.setup do |c|
   c.extend_orms = [ :active_record ]
@@ -87,6 +88,7 @@ end
 Rspec.configure do |c|
   c.mock_with :rspec
   c.include(RspecTagMatchers)
+  c.include(ModelHelpers)
   c.before do
     Person.reset_callbacks(:validate)
     PersonWithShim.timeliness_validated_attributes = []

spec/validates_timeliness/validator/after_spec.rb

@@ -1,8 +1,6 @@
 require 'spec_helper'
 
 describe ValidatesTimeliness::Validator, ":after option" do
-  include ModelHelpers 
-
   describe "for date type" do
     before do
       Person.validates_date :birth_date, :after => Date.new(2010, 1, 1)

spec/validates_timeliness/validator/before_spec.rb

@@ -1,8 +1,6 @@
 require 'spec_helper'
 
 describe ValidatesTimeliness::Validator, ":before option" do
-  include ModelHelpers 
-
   describe "for date type" do
     before do
       Person.validates_date :birth_date, :before => Date.new(2010, 1, 1)

spec/validates_timeliness/validator/is_at_spec.rb

@@ -1,8 +1,6 @@
 require 'spec_helper'
 
 describe ValidatesTimeliness::Validator, ":is_at option" do
-  include ModelHelpers 
-
   before do
     Timecop.freeze(Time.local_time(2010, 1, 1, 0, 0, 0))
   end

spec/validates_timeliness/validator/on_or_after_spec.rb

@@ -1,8 +1,6 @@
 require 'spec_helper'
 
 describe ValidatesTimeliness::Validator, ":on_or_after option" do
-  include ModelHelpers 
-
   describe "for date type" do
     before do
       Person.validates_date :birth_date, :on_or_after => Date.new(2010, 1, 1)

spec/validates_timeliness/validator/on_or_before_spec.rb

@@ -1,8 +1,6 @@
 require 'spec_helper'
 
 describe ValidatesTimeliness::Validator, ":on_or_before option" do
-  include ModelHelpers 
-
   describe "for date type" do
     before do
       Person.validates_date :birth_date, :on_or_before => Date.new(2010, 1, 1)

spec/validates_timeliness/validator_spec.rb

@@ -1,7 +1,6 @@
 require 'spec_helper'
 
 describe ValidatesTimeliness::Validator do
-  include ModelHelpers
   NIL = [nil]
 
   before do