Bump to next maintenance release
Properly cleanup memory of broken connections

Fixed ticket #148.
Fixed bad interaction of setup.py with other dependencies

The problem is in Distribute dependencies on Python 3. Create a new command
class instead of changing inplace the one other projects may use.

Close ticket #153.
Fixed leak of cancel key on connection.reset()

Moving the final free into the destructor is not necessary but looks
appropriate.
Fixed broken test decorator preventing 3 tests to run