Update the unit tests for the Dispersy refactor.
Move all community related methods from dispersy.py to community.py and
update all references. (Commits from Niels also squashed in this one)
fix some more calls
print_exc() to see why the logger has disappeared.
point to the dispersy list instead of the iterator
Merge pull request #200 from whirm/move_initiate_meta_messages

Move initiate meta messages