cleaning up feature a bit
added optional descriptions to transactions
Background setup for new cukes
Bank administrator can transfer money
Added context to calculate bank balance
Can compute bank total balance
Next failure point is ready to implement
Don't include scenarios tagged wip in CI task
Working on pending transactions
Moved all the logic into variations
Transactions to external accounts are pending
All specs are passing, but a few things need cleanup
Renamed Transaction to Transfer
Renamed Variation to Transaction