[Weekview] Select range for the last day of week view doesn't work

[wolleysesom]

with on-date-range-select set, attempting to select timespan on the last day of the week view doesn't work.
Seems like the last cal-day-hour-part-spacer is pushed to the next row.

plunker

[mattlewis92]

Thanks for the repro, I'll get that fixed up in the next release!