Duplicated logic in checkMainTransfer and checkSpenderTransfer

[adria0]

Consider move this base logic (not code) into a separate function, is used by checkMainTransfer and by checkSpenderTransfer

uint actualDay = now / 86400;       //Number of days since Jan 1, 1970 (UTC Timezone) fractional remainder discarded
uint actualTime = now % actualDay;  //Number of seconds since midnight (UTC Timezone)

if (actualTime < spender.openingTime) actualDay--; // adjusts day to start at `mainopeningTime`

uint timeSinceOpening = now - (actualDay * 86400 + spender.openingTime);

uint windowTimeLength = spender.closingTime >= spender.openingTime ?
                                spender.closingTime - spender.openingTime :
    

[jbaylina]

I use actualDay to determine also when the Day Start, so it's not easy to isolate it without disoptimizing.