Fix various memleaks in the tests
No reason to store this in the d-pointer
Break up the mega-lines
Merge pull request #439 from xhochy/test-memleaks

Fix various memleaks in the tests
Merge branch 'master' of https://github.com/taglib/taglib
Take ownership of embedded frames, as documented

Previously embedded frames that were created automatically were
never deleted.

Fixes #440