Add TwoDNS as new provider.
Add Udmedia as new provider.
Add Zoneedit as new provider.
Add Strato as new provider.
Merge remote-tracking branch 'stevee/twodns.de'

Conflicts:
	src/ddns/__init__.py
	src/ddns/providers.py
Merge remote-tracking branch 'stevee/udmedia.de'

Conflicts:
	ddns.conf.sample
	src/ddns/__init__.py
	src/ddns/providers.py
Merge remote-tracking branch 'stevee/zoneedit.com'