* PW-300 Hosted CSE solution, change from CSE key to library token

* use test or live url depending if running on test or live. adyen is already loaded through adyen_cc payment method so can be ignored for adyen_oneclick methdo

* add storeId into call

Use empty if customer doesn't have a Date of Birth set

Initial unit tests setup

PW-261 Removed the detailed refusal reasons, added frontend CVC validation. 

Config import with serialized value

#225 - Fix documentation link

* PW-329: Include cron health checks

* An admin message will show up if there is a notification which has not been processed for more than 10 minutes
* Trigger the same check on a notification coming from the Adyen Backoffice

* PW-329: Moved the croncheck into the try/catch clause, minor issues fix.

* PW-329: Moved the cronchecktest so that it is initiated only after the Authentication is done.

Added frontend CVC validation

Added detailed cron exception logging

Remove cse token from additional data to prevent persisting it

PW-328 Fix avs

Fixes #186 Remove minify_exclude and load df.js on runtime

Added sending of invoice emails if enabled in backend

#204 Add duplicate check into notificaiton processing and fix formatting

PW-304 Inserted Personal number for Nordic countries

Added github templates for issues and PRs