accounts for 1:00-1:45 also matching 11:00-11:45

- both AM and PM
- also handles 2:00-2:45 matching with 12:00-12:45
adds 'blur' event to enter event

- this forces the timepicker to blur and close when hitting enter
adds scrollable container to timepicker

- popover-nub was initially being hidden via overflow on timepicker so
now the timepicker container is accountable for the overflow