[easytag] (8 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:

  078da5d... Read DSF header information
  e76eb21... Read ID3v2 tags from DSF files
  8de6163... Write ID3v2.4 tags to DSF files
  9756ea4... Write ID3v2.3 tags to DSF files
  08b8567... Move private ID3 functions into a separate header
  dcf2020... Strip additional ID3 date fields while saving

Commits added to the branch:

  afed136... Fix launching an external application (*)
  a9d84f5... Return a GError when launching external programs (*)
  0db1a47... Read DSF header information
  db31966... Read ID3v2 tags from DSF files
  14de532... Write ID3v2.4 tags to DSF files
  27af059... Write ID3v2.3 tags to DSF files
  3e3e64c... Move private ID3 functions into a separate header
  4c3dfc1... Strip additional ID3 date fields while saving

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