auto borrow trigger

[jellicoe]

in index.js

lines 563 to566

        }else if(nowPercent < **belowTrigger**){
            let ust_amount = parseInt((target_percent - percentNow) / percentNow * loanAmount)
            await repayHandler.borrow_ust(ust_amount)
        }

should this be target_percent, as belowTrigger is always -1 and is not the target value

        }else if(nowPercent < **target_percent**){
            let ust_amount = parseInt((target_percent - percentNow) / percentNow * loanAmount)
            await repayHandler.borrow_ust(ust_amount)
        }