[easytag] (18 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:

  825d2e5... Use stock GTK+ icons in a few more places
  f736f35... Use icons from the icon naming specification
  6e353bf... Fix missing prototype warnings
  112fdd1... Use gboolean for returning TRUE and FALSE
  111dc60... Remove some unused variables
  d62d825... Fix an uninitialised variable warning
  7686500... Use g_file_new_tmp() for creating temporary file
  33011d9... Add static to many declarations
  6494368... Use g_return_if_fail() and g_return_val_if_fail()
  4a1840c... Avoid use of AC_CYGWIN and AC_MINGW32
  476a20d... Simplify filename_to_display()

Commits added to the branch:

  c7d5119... Updated Serbian translation (*)
  2a3e46c... Updated Polish translation (*)
  1669995... Updated Spanish translation (*)
  0b1ce79... Show the rename and save confirmation checkbutton (*)
  155891d... Remove some unused-but-set variables (*)
  a9eb8c8... Return a value where it is required to do so (*)
  ec68e6b... Use TRUE and FALSE for Main_Stop_Button_Pressed (*)
  7965bc1... Use stock GTK+ icons in a few more places
  2354a79... Use icons from the icon naming specification
  ec973f9... Fix missing prototype warnings
  9f3cefe... Use gboolean for returning TRUE and FALSE
  4e7c9ce... Remove some unused variables
  f86523f... Fix an uninitialised variable warning
  234274b... Use g_file_new_tmp() for creating temporary file
  e0a9d72... Add static to many declarations
  7d1ef2c... Use g_return_if_fail() and g_return_val_if_fail()
  61c8cdb... Avoid use of AC_CYGWIN and AC_MINGW32
  30e04a1... Simplify filename_to_display()

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