Start making libevwrapper.c py3k compatible
Fix compilation of libev C extension for py3k
Update libev unit tests for python3
Update changelog
Handle unset CL on statements when printing/logging
Don't submit tasks to executor after shutdown
Fix mixed declarations and statements.

Starting in Python 3.4, distutils apparently adds
-Werror=declaration-after-statement to the C flags. This causes the
murmur extention build to fail. This patch corrects declarations which
are made after statements.
Add Python3.4 to tox and travis configs
Update changelog
Merge branch 'master' of https://github.com/datastax/python-driver