[gedit] (11 commits) ...auto-spell: don't disconnect two times the same signals

[Sébastien Wilmet <swilmet src gnome org>]

Summary of changes:

  cbfd71a... spell: get rid of signal marshallers (*)
  9bd9429... spell: better #include order (*)
  05ab645... spell: link to gnu.org for the GPL license (*)
  2d9dd06... spell: fix coding style in utils functions (*)
  5a455dc... spell: make gedit_spell_utils_is_digit() more robust (*)
  7d155ee... spell: better format the headers (*)
  04ba74c... auto-spell: fix indentation (*)
  16dcbf2... auto-spell: don't use GtkImageMenuItem (deprecated) (*)
  f3b795a... auto-spell: remove commented print debugging (*)
  559fbf7... auto-spell: don't use quarks for GObject data (*)
  e6559e8... auto-spell: don't disconnect two times the same signals

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