Clear gateway adapter globals cache after tests

Conflicts:
	tests/Adapter/GlobalCollect/GlobalCollectTestCase.php
	tests/includes/test_gateway/test.adapter.php

Change-Id: I5075ae050732371c5f5dca9040e2d14d5d083054
GC: Check XML for CVV result, use blanks if missing

When confirming a credit card payment, check the XML even if we
were given a CVV/AVS result on the querystring.  Use blank strings
if no result exists in the XML.

Conflicts:
	tests/Adapter/GlobalCollect/GlobalCollectTestCase.php

Change-Id: I3b73e7e8c1e1f1b795178cbbb20870cd4ba6d861
Whitespace

Change-Id: I85ba0df5c15a584531767ae61f2de1d20545018a
Localisation updates from https://translatewiki.net.

Change-Id: I283a7bccb7521780c32a15f41c28b713a41a865b