Fix undefined method error when :day_of_week key is integer; fixes gregschmit#163.

Author: gregschmit

lib/recurring_select.rb

@@ -59,7 +59,7 @@ def self.filter_params(params)
     # this is soooooo ugly
     if params[:validations][:day_of_week]
       params[:validations][:day_of_week] ||= {}
-      if params[:validations][:day_of_week].length > 0 and not params[:validations][:day_of_week].keys.first =~ /\d/
+      if params[:validations][:day_of_week].length > 0 and not params[:validations][:day_of_week].keys.first.to_s =~ /\d/
         params[:validations][:day_of_week].symbolize_keys!
       else
         originals = params[:validations][:day_of_week].dup