fix sorting; add ui tips for sort order
update list of student's changed credit cards
don't show 'null' for firstname on latest activity
fix bug in default selected details sort; a couple of clean ups
when there are two active potentials we now give 100% to the one in pure revenue state (excluding 'waiting'), and if multiple are pure revenue state then allocate single charge across potentials based on class cost at that time.
use new fixtures for tim backend data from redis; get new submodule w/ this new feature
dont' show null in details view names
update expectations based on latest fixtures
fix bug in zoho when it sends duplicate potentials; improve logging
Merge branch 'master' into tim