Fix bug in ordering on Travis

Author: n-rodriguez

spec/ajax-datatables-rails/orm/active_record_filter_records_spec.rb

@@ -503,6 +503,7 @@
 
       it 'should filter records matching' do
         datatable.params[:columns]['4'][:search][:value] = '1|2'
+        datatable.params[:order]['0'] = { column: '4', dir: 'asc' }
         expect(datatable.data.size).to eq 2
         item = datatable.data.first
         expect(item[:first_name]).to eq 'john'

spec/support/datatable_cond_numeric.rb

@@ -42,7 +42,7 @@ def view_columns
 
 class DatatableCondInWithRegex < DatatableCondIn
   def view_columns
-    super.deep_merge(post_id: { cond: :in, use_regex: false, formatter: ->(str) { cast_regex_value(str) } })
+    super.deep_merge(post_id: { cond: :in, use_regex: false, orderable: true, formatter: ->(str) { cast_regex_value(str) } })
   end
 
   def cast_regex_value(value)