New port: devel/py-nagioscheck:

pynagioscheck is a Python framework for Nagios plug-in developers.

pynagioscheck strives to conform to the practices described in the Nagios
Plug-in Development Guidelines and, more importantly, save valuable system
administrator time.

WWW: https://pypi.python.org/pypi/nagioscheck/
- Convert USE_PYTHON to USES+=PYTHON
- Drop .la files, no dependees require them

Approved by:	portmgr blanket
- Update to 3.0.19

Changes:
  * Fix improper call to 'msg_warn'. Bad backport from 3.1.

Reported by:	sunpoet
- Fix build on 8.x which does not have TCP_KEEPIDLE

Approved by:	maintainer