store reclassified votes in order

Make sure we create Budget::ReclassifiedVotes for an investment in the
same order that the previous Budget::Ballot:Lines were previously created.

app/models/budget/reclassification.rb

@@ -30,7 +30,7 @@ class Budget
     end
 
     def store_reclassified_votes(reason)
-      ballot_lines_for_investment.each do |line|
+      ballot_lines_for_investment.order(:id).each do |line|
         attrs = { user: line.ballot.user,
                   investment: self,
                   reason: reason }