Allow overriding module-set client options

TelekomLabs-DCO-1.1-Signed-off-by: Matthew Haughton <matt@3flex.com.au> (github: 3flex)
Allow overriding module-set server options

TelekomLabs-DCO-1.1-Signed-off-by: Matthew Haughton <matt@3flex.com.au> (github: 3flex)
README: Add example of overriding module settings

TelekomLabs-DCO-1.1-Signed-off-by: Matthew Haughton <matt@3flex.com.au> (github: 3flex)