Initial coupons mockup
Make compatible with updated credentials API
Working version of Vouchers

Thanks to Gergely for improving the website.
Merge branch 'master' of github.com:credentials/irma_web_service

Conflicts:
	src/org/irmacard/web/restapi/resources/MijnOverheidIssueResource.java
Merge branch 'master' into pilot

Conflicts:
	WebContent/WEB-INF/web.xml