Don't overwrite params passed to doPayment because it's passed by reference and used by some core code which can't handle propertyBag and we don't want to change the input array

Fix doPayment return params. Require mjwshared 1.2.2

See merge request !14

Convert mandates table to SmartdebitMandate entity. Add refresh_date field

Closes #8

See merge request !13

Fix issue #8 Can't change billing details

Closes #8

See merge request !12

Fix #14 Unable to load membership renewal form on back end

Closes #14

See merge request !11

Add additional information to acceptance text.

See merge request !8

Resolve "The ORGANISATION_NAME token isn't replaced before submission"

Closes #10

See merge request !7