renames class to migrate spending proposals to investments

lib/migrate_spending_proposals_to_investments.rb

@@ -1,4 +1,4 @@
-class SpendingProposalsImporter
+class MigrateSpendingProposalsToInvestments
 
   def import(sp)
     budget = Budget.last || Budget.create!(name: Date.today.year.to_s, currency_symbol: "€")

spec/lib/migrate_spending_proposals_to_investments_spec.rb

@@ -1,8 +1,8 @@
 require 'rails_helper'
 
-describe SpendingProposalsImporter do
+describe MigrateSpendingProposalsToInvestments do
 
-  let(:importer) { SpendingProposalsImporter.new }
+  let(:importer) { MigrateSpendingProposalsToInvestments.new }
 
   describe '#import' do