Rewrote most unit-tests, still need a lot of cleanup. 
- Removed legacy code from dispersy
- Removed crazy if __debug__ imports
Fix for test_bootstrap error did not show up in windows
Next one
Actually test batching, reverted removal of test_identicalpayload
Made assert_is_stored methods to prevent all unittests writing their own
sql statements
Removed non-strict stuff doesn't make sense
Merge pull request #234 from NielsZeilemaker/revamp_unittests

Rewrote most unit-tests, still need a lot of cleanup.