lang/python27: Update to 2.7.9

The FreeBSD Python team welcomes Python 2.7.9 to the Ports tree!

Announcement: https://www.python.org/downloads/release/python-279/
Changelog: http://hg.python.org/cpython/raw-file/v2.7.9/Misc/NEWS

Important changes for this release:

• The entirety of Python 3.4's ssl module has been backported for Python 2.7.9. See PEP 466 for justification.
• HTTPS certificate validation using the system's certificate store is now enabled by default. See PEP 476 for details.
• SSLv3 has been disabled by default in httplib and its reverse dependencies due to the POODLE attack.
• The ensurepip module module has been backported, which provides the pip package manager in every Python 2.7 installation. See PEP 477.

• While updating, try to improve the NIS detection for FreeBSD

PR: 193650
Differential Revision: https://reviews.freebsd.org/D1323
Reviewed by: koobs
With hat: python