RAW preview test coverage
Review Request #117210 - Created March 31, 2014 and submitted
Simple automated test coverage for RAW preview. If the testing files are not present in the tests/data directory, the tests are skipped with a message informing user about a simple script that fetches them from the digikam's tet data repository. Also, I improved the MIME type whitelist a bit (based on the digikam testing images).
Yes, everything works as expected.