Allow changes to recurring contribution parameters in future installments

Sometimes you need to change parameters for an ongoing recurring contribution. One such use case if you need to change the in_honor_of or campaign_id (ie. the donor decided to change the purpose of future installments, for example if a fundraising goal has been achieved or a new campaign is launched).

Right now, when creating the contribution record for a new installment, we do copy a number of values from the FIRST contribution record. It would be best to copy from the LAST contribution in the recurring series as this would allow changes as per explained above.

This issue is similar to CRM-13839, though the other seems to have a broader scope.