Cleanup of Reminders Keyword List

Before merging this in, make sure you:
- [x] merge https://github.com/dimagi/commcare-hq/pull/1598
- [x] preindex_views

![screen shot 2013-10-23 at 11 01 41 pm](https://f.cloud.github.com/assets/716573/1396249/a7db58e6-3c58-11e3-9ea0-361cc4b01c02.png)