New, class-based task for building AR history. Other changes:
Gathers any new data from the past 15 days so data should
auto-correct in the wake of any problems rotating transaction
data into archives. Also update custdata balances upon
completion rather than having that be a separate task.
WFC BUGFIXES: excessive string escaping in eval tool, array key
check in gazette biller, slightly different custdata sync on
inactive accounts
Merge remote-tracking branch 'origin/develop' into develop