Localisation updates from http://translatewiki.net.

Change-Id: Ia4fa6919fc2bce3d05fede6607403f09cef8098c
Security tightening, part 2

Change-Id: I0e7e31136d861a6c1bce1a7e5d023585c1e3137c
Clean up Adyen JS

Change-Id: I892e508f625dff377d0c1fca7b848ed098a52ecc
Adding validation for country code
Also cleaning up a little in DonationData.

Change-Id: Ia7a20e63ea1ff23fd3faeb81c3f084854a236a8f
Localisation updates from http://translatewiki.net.

Change-Id: I44b24e0a3f616adb6c60a0a6297864fe32b41e9e