Fixed a bunch of annoying/major graphical issues with the calendar

* Fixed a bug where the calendar would keep shrinking smaller and
  smaller as you resized the window.
* Fixed the size and alignment of the time span combobox in the corner,
  which fixes a bug where the text was cut off.
* Fixed a bug where the schedule header would grow as you flipped
  to the next or previous week.
* Dropped javascript from the resizing of the calendar (for the most
  part).