UI cleanup changes prior to scheduling work

This pull request brings in the (mostly visual) improvments from back in
2010 (updated for RTx-Calendar 0.17).

![calendar-before](https://cloud.githubusercontent.com/assets/346718/2691122/04d90e74-c374-11e3-96dd-628c8f12800e.png)

![calendar-after](https://cloud.githubusercontent.com/assets/346718/2691125/0cfadee8-c374-11e3-8e7b-24a40c979885.png)