Conform to pep8 rules.

autopep8 --in-place --max-line-length=120 --ignore=E501 --jobs=0 --recursive --pep8-passes=3 .
Merge pull request #152 from boudewijn-tribler/bugfixes

Point to latest Dispersy.
Merge pull request #146 from boudewijn-tribler/code-cleanup

Conform to pep8 rules.
Should not display bartercast debug info.