Pie chart support to S3profile

Hello there ,
I have added pie chart(jquery flot based) to s3profile.
Please refer to this https://github.com/flavour/eden/pull/452

![s3prof](https://f.cloud.github.com/assets/928501/453017/b27acff8-b304-11e2-9ae0-69ff8472e45f.png)