Normalize table and column names to downcase.

normalize_tables_and_columns.rb

namespace :normalize do
	desc "Nomalize table names"
	task table_names: [:environment] do
		ActiveRecord::Base.connection.tables.each do |table_name|
			if table_name.match(/[A-Z]/)
				ActiveRecord::Migration.rename_table table_name, table_name.downcase
			end
		end
	end

	desc "Normalize column names"
	task column_names: [:environment] do
		ActiveRecord::Base.connection.tables.each do |table_name|
			ActiveRecord::Base.connection.columns(table_name).each do |c|
        if c.name.match(/[A-Z]/)
				  ActiveRecord::Migration.rename_column table_name, c.name, c.name.downcase
        end
			end
		end
	end
end