change jsoup lib with the one provided by maven central repo

Provided that you haven't made any changes to the jsoup lib, please consider changing the lib to the one provided by the maven central repo.
Checksums do not match.
![2014-05-06--1399394574_826x221_scrot](https://cloud.githubusercontent.com/assets/2182943/2896554/c513df32-d56e-11e3-8bc9-294931705d6f.png)
The one in the maven central repo is properly signed, the current one is not.
![2014-05-07--1399414321_817x232_scrot](https://cloud.githubusercontent.com/assets/2182943/2896561/f4b2043a-d56e-11e3-8a86-0e7e31b5e005.png)

Thanks for the app, I tip my tinfoil hat to you.