TrsrDB:
fixed Id -> credId
autobalance -> make_transfers
TrsrDB::Account:
added history accessor
TrsrDB::Balance:
added fieds earned spent and even_until, renamed credit to available
TrsrDB::CurrentArrears:
fixed account -> debtor in relation declaration
schema.sql:
fixed triggers
deactivated trigger enforceFixedCredit
extended Balance with some more fields
t/schema.{sql,out}
trivial fixes
t/schema.t added tests:
Get balances after transfers
partial use of credit,
indirect transfers
