faq: recommend "socket" ipv6 global static address detector rather than this shell hack
remove redundant pointer to github issue tracker (it's already at the top of the page)
the comma makes the tuple, not the parens
pidfile: w+b expects bytes, but on py3 it got unicode str

but as it is a text file, binary mode is wrong anyway, so just use text mode.
pidfile: use "with" to close file immediately
fix typos
Merge branch 'develop' of git://github.com/nsupdate-info/python-dyndnsc into nsupdate-info-develop

Conflicts:
	dyndnsc/tests/resources/test_resources.py
Merge branch 'nsupdate-info-develop' into develop