[easytag] (11 commits) Non-fast-forward update to branch wip/core-refactoring

[David King <davidk src gnome org>]

The branch 'wip/core-refactoring' 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:

  50a1550... Update version to 2.5.1 on master
  94547c1... Mark up a string for translation
  60662c6... Simplify FLAC tag field setting
  13c2e01... Remove et_ogg_write_tag()
  57fe72b... Make the Vorbis comment field names into defines
  845edcd... Avoid locale-sensitive field name reading for FLAC

Commits added to the branch:

  0c0f46b... Fix a crash when renaming directories (*)
  be2943c... Update version to 2.5.1 on master
  f3acd4c... Mark up a string for translation
  322573a... Simplify FLAC tag field setting
  16f57bb... Remove et_ogg_write_tag()
  afde028... Make the Vorbis comment field names into defines
  88f312c... Avoid locale-sensitive field name reading for FLAC
  10d5387... Avoid locale-sensitive field name reading for Ogg
  58725a4... Use strncmp() when case is not a factor
  c21c62f... Use g_ascii_strcasecmp() for ID3v2.4 field names
  d272b0b... Remove setlocale() calls around tag reading

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