Users can categorize posts and browse posts by category

https://trello.com/c/DmjiI5Y8/8-as-a-user-i-can-categorize-a-post-as-being-bikes-boats-etc

[Trello Card](https://trello.com/c/DmjiI5Y8/8-as-a-user-i-can-categorize-a-post-as-being-bikes-boats-etc)

![image](https://cloud.githubusercontent.com/assets/420113/4919529/2e4b73ea-64fb-11e4-8927-154b16aed155.png)

![create-post](https://cloud.githubusercontent.com/assets/420113/4919560/69593152-64fb-11e4-991b-5067e566435b.gif)