www/py-requests: Update to 2.4.3

- Update to 2.4.3
- Update to USES and USE_PYTHON new world order
- Add LICENSE_FILE
- Add TEST_DEPENDS
- Update pkg-descr

Changes:

  https://github.com/kennethreitz/requests/blob/v2.4.3/HISTORY.rst
Use newly-built binaries first.  When $PATH contains PREFIX/bin, an old
(maybe broken) binary could be used to generate .fmt files.

PR:	195396
Horde package update:

comms/pear-Horde_ActiveSync 2.20.1 -> 2.20.4
devel/pear-Horde_Core 2.16.1 -> 2.17.1
devel/pear-Horde_Icalendar 2.0.9 -> 2.0.10
mail/pear-Horde_Imap_Client 2.25.3 -> 2.25.5
mail/pear-Horde_ListHeaders 1.1.5 -> 1.2.0
mail/pear-Horde_Mail 2.4.0 -> 2.5.0
mail/pear-Horde_Mime 2.4.5 -> 2.5.2
mail/pear-Horde_Smtp 1.6.0 -> 1.7.0
Add new port www/madsonic, a network media streamer
Madsonic is a fork of Subsonic, offering more features
and mobile client access without the subscription fee.

PR:		ports/186860
Submitted by:	Nicole Reid <root@cooltrainer.org>
swapdir should be in /var/squid/cache.