Jarfile: update Kill Bill to 0.1.80

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>
gemspec: update Kill Bill to 1.0.19

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>
api: minor changes to returned output

* mark payment methods as non-default (to be safely used in production)
* make type "Test" for display purposes
* be consistent for the external payment method id

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>
version: update to 1.0.9

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>