[easytag] (19 commits) Non-fast-forward update to branch wip/easytag-next

[David King <davidk src gnome org>]

The branch 'wip/easytag-next' 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:

 http://live.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  9670828... Use stock GTK+ icons in a few more places
  1e2928b... Use icons from the icon naming specification
  e573a15... Fix missing prototype warnings
  f3d52f5... Use gboolean for returning TRUE and FALSE
  d731ad8... Remove some unused variables
  f98200a... Fix an uninitialised variable warning
  d269b5b... Use g_file_new_tmp() for creating temporary file
  151146f... Add static to many declarations
  5a08f3e... Use g_return_if_fail() and g_return_val_if_fail()
  2fb39b3... Avoid use of AC_CYGWIN and AC_MINGW32

Commits added to the branch:

  9e49384... Fixed typos in strings (*)
  6292272... Updated Polish translation (*)
  9a9339f... Updated Spanish translation (*)
  581af97... Fixed another typo (*)
  36a3866... Fix typos in translatable strings (*)
  783a2b1... Updated Polish translation (*)
  35a7629... Updated Spanish translation (*)
  4afb94f... Updated Serbian translation (*)
  6e83cbc... Updated Spanish translation (*)
  54d93a3... Use stock GTK+ icons in a few more places
  6868f0a... Use icons from the icon naming specification
  0eb0473... Fix missing prototype warnings
  9842766... Use gboolean for returning TRUE and FALSE
  8b95550... Remove some unused variables
  54c493c... Fix an uninitialised variable warning
  246e0eb... Use g_file_new_tmp() for creating temporary file
  9ff5f45... Add static to many declarations
  009d6e6... Use g_return_if_fail() and g_return_val_if_fail()
  888b5a5... Avoid use of AC_CYGWIN and AC_MINGW32

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