Localisation updates from https://translatewiki.net.

Change-Id: I4b3c9424e4a40dff0c582f518063f5e571afdaff
Add a 'No valid form' RapidHtml form

When RapidHtml.php can't load the requested form, instead of
showing a white screen with 'Make your donation now' title,
show an error message with a like to 'ways to donate' and the
problemsdonating email address.

Change-Id: I295fdb8dc95e0e059ef61ab9688f9cd548e46402
Localisation updates from https://translatewiki.net.

Change-Id: Idec242be0f1bdc593773ee75fc56597f39d78812
Cleaning up the payments error logs

We really don't need to see an entry in the payments error log
for every invalid or fat-fingered credit card payment attempt.
Mostly we should reserve error messages for things that we don't
expect to happen all the time, or that might indicate a programmer
error.

Conflicts:
	tests/Adapter/GlobalCollect/GlobalCollectTestCase.php

Change-Id: I297d7f692d80eaee454a55abb00e78770fe8a574