Added lock to dict_inc
Put lock in contructor, call constructor from subclasses
Remove lock from CommunityStatistic
Move take_step() from Dispersy to Community
Merge pull request #198 from NielsZeilemaker/thread_safe_stats

Added lock to dict_inc
Merge pull request #203 from whirm/take_step_per_community

Move take_step() from Dispersy to Community
Replaced all messages[0].meta.community by self
Missed one
Yet another one
Merge pull request #208 from NielsZeilemaker/clean_up_on_handlers

Replaced all messages[0].meta.community by self
Rename _watchdog to _flush_database (not really a watchdog)
Create NoVerifyCrypto object and update tracker.py to use it (also a bit
of cleanup)
Merge pull request #209 from whirm/watchdog_rename

Rename _watchdog to _flush_database (not really a watchdog)
Move on_incoming_packets, batching and its auxiliar functions to
community.py
Also remove obsoleted tests.
Merge pull request #210 from whirm/incoming_packets_refactor

Move on_incoming_packets, batching and its auxiliar functions to community.py
Merge pull request #211 from whirm/tracker_cleanup

Create NoVerifyCrypto object and update tracker.py to use it (also a bit of cleanup)
Convert the iterator to a list to make a couple of asserts happy.
Merge pull request #213 from whirm/incoming_packets_refactor

Convert the iterator to a list to make a couple of asserts happy.