Add in some mixed currency contributions

Add in some mixed currency contributions

This fixes some of the contributions & recurring contributions to be in currencies other than USD.

I also found that a lot of the contributions being created are either in 2010 or on the generation
date so I spread the dates out a bit - although that meant making it a bit easier to
keep the activities in sync.

It turns out the API does work in this context - and that would create the activities
more faithfully - but the issues around the processor being created by a different process are
a bit challenging