Added missing responses for test cases.
Fixed HttpRequest mock in that it does not URL encode any more.
Expanded test cases.
Made some fixes to 6.7 and 6.8 adapters due to changed API.
Scrapped 6.5 support completely (so that 6.6-adapters now contain base implementations).
Recommendations not longer supported for 6.6 (as there was no JSON API for it back then).
Fixed a JS bug in the DemoShop's ASN.
Moved strings for sorting options to i18n.