de/de-informal: language updates for the core, authldap, authmysql, authpgsql

Add missing jQuery-UI image and update update script

For just one image another syntax was used, this fixes the update script
to also fetch this image.

Update settings.php

Update metadata.php

Without this unable to access AD info. Also allows SSO.

Update default.php

Wihtout this, unable to fetch any AD info.. also allows SSO.

don't send empty cookie header

stream select parameters need to be reset for each call

German (informal) language update

Korean language update

Brazilian Portuguese language update

upgrade jQuery scripts

jQuery 1.9.0 had a bug in replaceWith() that got fixed in 1.9.1 - to
ensure compatibility I upgraded the whole suite to their current
releases.

don't resize images when resize dimensions match native image dimensions

add some dependency checks with test skips to fetch tests and tests which use TestResponse::headers

add test for fetch using image tokens

update TestResponse class to return specific headers & status codes (with tests)

extend TestRequest class to test fetch & detail; add a test to check it does

code changes in the rest of the code base to support testing fetch

refactor fetch to support unittesting

add a token to fetch urls requiring image resize/crop to prevent external DDOS via fetch

avoid creating an intermediate crop image when the final image will match a resize

removed unsused translation file

fixed lithuanian language file

removed unused string in km translation

correct parenthesis in image crop calculations to ensure integer values

backward compatibility for old authtype settings