Upgrade to Scala 2.10.2

Hi Yang,

Thanks again for this cool macro!

Cool it be possible that you release 0.2.2? We rely heavily on fastring in [Gatling](https://github.com/excilys/gatling), so getting 3e6a625f17243abdaa1c7ecadbb2d7c542237a83 would be cool.

Regards,

Stéphane