Add support for Zerigo.com DDNS provider, from inadyn-mt.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Add support for DHIS.org DDNS provider, from inadyn-mt.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Bump version to 1.99.9-beta2 due to new DDNS providers

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>