[easytag] (14 commits) Non-fast-forward update to branch wip/ax-compile-warnings

[David King <davidk src gnome org>]

The branch 'wip/ax-compile-warnings' 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:

  27f659f... Avoid shadowed variable warnings
  765d54b... Avoid unhandled switch cases warning
  eefc886... Avoid old-style function declaration
  53fc9db... Fix sign comparison warnings
  94b3a68... Fix const correctness warnings
  253e7bc... Port to AX_COMPILER_FLAGS
  51277b7... Use AX_IS_RELEASE to control compiler warnings
  86abd79... Use AX_GENERATE_CHANGELOG

Commits added to the branch:

  6f19b85... Avoid shadowed variable warnings (*)
  e90a7e8... Avoid unhandled switch cases warning (*)
  9110197... Avoid old-style function declaration (*)
  e0a9c2f... Fix sign comparison warnings (*)
  127157d... Fix const correctness warnings (*)
  3aaf603... Port to AX_COMPILER_FLAGS (*)
  7f2d67b... Use AX_IS_RELEASE to control compiler warnings (*)
  8097699... Use AX_GENERATE_CHANGELOG (*)
  4d2e91f... Refactor function to check if all files are saved (*)
  e9225a1... Refactor file list freeing functions (*)
  f6f2e4d... Refactor artist album file list functions (*)
  e319c90... Remove unused displayed list function (*)
  8a94b7d... Refactor several file list functions (*)
  44ee9ec... Remove several unused functions (*)

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