* customer reference prefix

* added java doc; made customer_reference_prefix only available in default

* workaround for adyen notification processing delay

* updated the module version to that of master

* Allow to retrieve api key for a specified store

* PW-503: Parse Payment receipt from TerminalAPI PaymentResponse

* PW-503: call formatTerminalAPIReceipt from the validator

* PW-503: removed redundant html tags, added custom table class

* PW-503: removed redundant table, refactor, added nbsp if empty

* PW-489: Added Initiate call before placing the order

* PW-489: Construct sync call request on Magento instead of on the Util Library, add encryptor on pos api key

* PW-489: Removed logger/comments

* PW-458: Implemented status call every 5 seconds, added timeout on Initiate call

* PW-458: Fixed terminalAPI guest checkout, added configuration for pos_timeout, return immediately if response from Initiate call

* PW-458: Do not show pos_timeout in config

* PW-458: Retrieve quoteid from the backend, added PHP library version requirement, using settimeout instead of setinterval, removed pos_timeout from adyen_pos_cloud xml, renamed Initiate button label back to Place Order, replaced the .done().fail() flow with .always() on the frontend