First round of personal fundraising upgrades
- Add ability to set Mailchimp lists for Donors and Fundraisers under a campaign.  Lists are automatically configured with the needed mergeVars and event handlers subscribe donors and fundraisers to the list if configured
- Add ability to distinguish between getting the campaign, always a Fundraising Campaign, and the campaign page, either a Fundraising Campaign or a Personal Campaign Page.
- Set contact_sf_id on personal_campaign_page and add index to setuphandler
- Add get_fundraiser method to Personal Campaign Page to get the Person object for the page's owner