Sort by Package Name

Hi,
This pull request has following changes
1. Unified the the Derived Package name in all fragments (as per ryan's suggestion)
2. Sorting based on the package name in all 3 screens
3. One small feature to enable/disable service blocking. I normally keep this off because i feel service blocking can be more misused

I'm working towards package based views, lets c how fair it looks after implementation.

Thanks
Ruturaj