[easytag] (9 commits) Non-fast-forward update to branch wip/dsf-support

[David King <davidk src gnome org>]

The branch 'wip/dsf-support' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  a4de9a5... Read DSF header information
  bb947eb... Read ID3v2 tags from DSF files
  8b55b46... Write ID3v2.4 tags to DSF files
  24d1976... Write ID3v2.3 tags to DSF files
  e3943ac... Move private ID3 functions into a separate header
  f4d2ea3... Strip additional ID3 date fields while saving
  af060d7... WIP Add tests for DSF format support

Commits added to the branch:

  4fcfe21... Add tests for DLM function (*)
  38ba361... Add tests for several picture functions (*)
  a1cf03b... Read DSF header information
  6ec5ac4... Read ID3v2 tags from DSF files
  57ab01d... Write ID3v2.4 tags to DSF files
  67cc981... Write ID3v2.3 tags to DSF files
  2504655... Move private ID3 functions into a separate header
  577848d... Strip additional ID3 date fields while saving
  bd76c58... WIP Add tests for DSF format support

(*) This commit already existed in another branch; no separate mail sent