nvie/pip-tools — pull request #101 by blueyed (2014-06-20 12:12:45+00:00)
Title: Add `_session` to `PackageManager` (required with pip master)

It is a required argument for `PackageFinder` and `get_file_content`.

Tested with pip master (1.6) and 1.5.6.

Fixes https://github.com/nvie/pip-tools/issues/100.