v0.15.2
Move all source code to src/
Remove incorrect call to pdb in ``backports.http.client`` (issue #164)
Attempt to fix sporadic travis-ci.org test failures (builds #429, #430)
Py2.6 compatibility: use 3-argument create_connection() from future.backports.socket (issue #162)
Fix ``future.backports.misc.create_connection()`` on Py26
Use the same sentinel as in the stdlib ``socket.py`` for ``create_connection()`` in ``future.backports.socket``