MFH: r365572

Update all Django ports to new security releases

On August 20, the Django team issued new security releases addressing
multiple vulnerabilities [1]. Update all of our Django ports accordingly:

- www/py-django: Update to 1.6.6
- www/py-django14: Update to 1.4.14
- www/py-django15: Update to 1.5.9
- www/py-django-devel: Update to 1.7 release candidate 3

While I'm here:

- Switch to USES=python and USE_PYTHON=<features>
- Deprecate OPTIONSFILE
- Add CPE information
- Add LICENSE_FILE
- Tweak HTMLDOCS option description

And for www/py-django-devel:

- Switch to GITHUB for distribution files

[1] https://www.djangoproject.com/weblog/2014/aug/20/security/

Approved by:	lwhsu (maintainer)
Security:	3c5579f7-294a-11e4-99f6-00e0814cab4e
Make sysutils/pstree operable in jailed environment.

(cherry picked from commit 0aa00da618ffa2bc5b4c4f8b89be22b9df2e9936)
Fixed replacement of $(PGBOUNCER_RUNDIR) in files/pgbouncer.in
Revert "Define and use "our_gid" variable."