Updated Client for MQTT library

I’ve made some updates to the MQTT library for the arduino ethernet shield and released version 1.1. You can find the library here. I'm thinking of moving it to github or google code once I can decide which to use - any suggestions? The code is now hosted on github.

This update includes:

• smaller code footprint,
• support for Will messages - particularly useful for embedded devices,
• clarified licensing - this is released under the MIT License.

Enjoy.