Localisation updates from https://translatewiki.net.

Change-Id: I8de45144d90a85117e8ee7b962556c24657cc1c0
Localisation updates from https://translatewiki.net.

Change-Id: Ic250a6044b8b5a6027f451e5a0153fc22279f7bb
Taking control of Amazon's payment_submethod.

Also moving some amazon-specific logic out of DonationData.

Change-Id: Ic0eeb01bc9d4c59cfc2e036cca95e3992acd251c
Localisation updates from https://translatewiki.net.

Change-Id: Ia48cd2da58cb6f70da7442011bc492c314d48889