EventTimeRanges shorter than 15min are drawn at the end of the Dayview

I found the issue in `DayView.java::setEventRects()`:

```
int filteredStartMinute = Math.max(startMinute, timeRange.startMinute);
int duration = Math.min(endMinute, timeRange.endMinute) - filteredStartMinute;
if (duration < MIN_DURATION_MINUTES) {
duration = MIN_DURATION_MINUTES;
filteredStartMinute = endMinute - duration;
}
```
`MIN_DURATION_MINUTES` is 15min and `endMinute` is 11:59pm, so if duration is ever less than the minimum, it is drawn as a `DirectionalRect` from 11:44pm - 11:59pm.

I may be misinterpreting the intention here, but I suspect that filteredStartMinute should be reassigned relative to the `timeRange.endMinute`, not `this.endMinute`. IE:

```
if (duration < MIN_DURATION_MINUTES) {
duration = MIN_DURATION_MINUTES;
filteredStartMinute = timeRange.endMinute - duration;
}
```

Start in DayView.java at setEventRects() and read how filteredStartMinute and duration are calculated for short EventTimeRanges. Verify the behavior for ranges shorter than MIN_DURATION_MINUTES, including one near the end of the day. Done means short ranges are positioned relative to their own timeRange rather than being drawn at the end of the Dayview.

Written by the indexing model from the issue text.