BanList Improvements

-- This is my latest and last attempt with this.

Changes:
- Better GUI
- Added "Search Box"

Known bugs:
- None

More important, my programming skills are not that good as I wanted, so if something is wrong in this patch - simply fix it, commit and move forward - if not leave it and use old ugly Ban List for another two years.

Preview:
![Lista_banw_ 0_pozycji _2013-03-01_14-38-32](https://f.cloud.github.com/assets/521035/209631/c202e3ee-8275-11e2-8ee1-b119deed59b8.png)