kijiproject.github.com: DOCS-143. Fix the phonebook tutorial typos.

Fixed a few issues in the tutorial:
* Not showing the right output when you delete a table.
* Showing a hashed entity_id instead of the formatted one when
showing data.

Reviewer: daisy
commit: https://github.com/kijiproject/kijiproject.github.com/commit/67084b9c6dccdefe499e939fce240c83a3c59519