add more audio formats to automatic test and fix one problem with Musepack
Review Request #129798 - Created Jan. 8, 2017 and submitted
Musepack extraction of album artist was using the wrong tag name (tested
against easytag and picard).
See also this page (http://taglib.org/api/classTagLib_1_1APE_1_1Tag.html) that seems to indicate that APE is using "ALBUM ARTIST" with a space between both words.
I have tested with automatic tests of KFileMetaData and also the encoding problem in Musepack format against Easytag and Picard applications.
Added one more test for m4a file format
Revision 2 (+114 -18)