[easytag] (20 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:

  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
  c83b2bc... Add static to many declarations
  91e621f... Use g_return_if_fail() and g_return_val_if_fail()
  f68b92d... Avoid use of AC_CYGWIN and AC_MINGW32
  b945d8b... Simplify filename_to_display()

Commits added to the branch:

  0a9d538... Set parent window of about dialog to main window (*)
  550e495... Avoid use of AC_CYGWIN and AC_MINGW32 (*)
  cd7bf25... Fix some more set-but-unused warnings (*)
  0155bc6... Remove further unused and set-but-unused variables (*)
  d2d6dac... Use stock GTK+ icons in a few more places (*)
  b2ea325... Use icons from the icon naming specification (*)
  19a30c0... Fix missing prototype warnings (*)
  2703a34... Use gboolean for returning TRUE and FALSE (*)
  4d13757... Fix an uninitialised variable warning (*)
  68a3f7b... Use g_file_new_tmp() for creating temporary file (*)
  2eb3192... Add static to many declarations (*)
  50b8b04... Use g_return_if_fail() and g_return_val_if_fail() (*)
  4255c0a... Use G_OS_WIN32 to contain Windows code (*)
  b662e93... Surround Browser_Win32_Get_Drive_Root with ifdef (*)
  071aed6... Remove some unused prototypes (*)
  7b78806... Fix const usage for id3_tag structure parameters (*)
  ff7ad30... Remove unused Id3tag_find_and_create_txxframe() (*)
  50b56f3... Add Andreas Winkelmann to AUTHORS (*)
  5ea1d76... Update copyright year in about dialog (*)
  8cfa231... Simplify filename_to_display()

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