507 character limiter

- Fixes #507 - makes it so the character limiter can be attached to any element with the ‘character-limited’ class attached.
- Adds `character-limited` class to location and service descriptions.

Screenshots:
![screen shot 2014-09-12 at 3 09 14 pm](https://cloud.githubusercontent.com/assets/704760/4254995/d45965dc-3ab0-11e4-8ff9-ba97ab089cbe.png)

![screen shot 2014-09-12 at 3 09 19 pm](https://cloud.githubusercontent.com/assets/704760/4254996/d45a7ae4-3ab0-11e4-9a30-9ccd666f8017.png)

![screen shot 2014-09-12 at 3 09 25 pm](https://cloud.githubusercontent.com/assets/704760/4254994/d4590b96-3ab0-11e4-8894-f206e2200ebe.png)