Updates to Reminders UI based on Sheel's feedback

A few things were left on the table for additional discussion. These were the easy initial wins.
![screen shot 2014-06-05 at 12 33 14 am](https://cloud.githubusercontent.com/assets/716573/3183427/c5b5b380-ec6a-11e3-9fda-9ad98dbe2081.png)
![screen shot 2014-06-05 at 12 32 59 am](https://cloud.githubusercontent.com/assets/716573/3183428/c5b5bdb2-ec6a-11e3-925a-cc9e92ad01c6.png)