[gtksourceview] (13 commits) Non-fast-forward update to branch wip/dont-use-intltool-2

[Sébastien Wilmet <swilmet src gnome org>]

The branch 'wip/dont-use-intltool-2' 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:

  a151825... i18n: get rid of intltool
  8a364fb... i18n: use itstool to extract strings from .lang files
  5b3c57a... build: update MAINTAINERCLEANFILES
  65409a5... i18n: use itstool to extract strings from style scheme file
  5426ab6... i18n: use itstool to extract strings from the glade catalog

Commits added to the branch:

  b7b3b07... Release 3.18.1 (*)
  340365c... Post-release version bump (*)
  3df7913... Add an empty GtkSourceTag class (*)
  8c51a6a... tag: add a property to draw spaces (*)
  3b608c3... Add test-space-drawing to test the GtkSourceTag property (*)
  9e36b46... tag: call gtk_text_tag_changed() in set_property() (*)
  ffe826c... test-widget: remove draw-spaces test (*)
  7d53190... docs: add index for 3.20 symbols (*)
  22685f7... i18n: get rid of intltool
  cae5579... i18n: use itstool to extract strings from .lang files
  d035c91... build: update MAINTAINERCLEANFILES
  0e90a48... i18n: use itstool to extract strings from style scheme file
  11a7300... i18n: use itstool to extract strings from the glade catalog

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