[gtksourceview] (22 commits) Non-fast-forward update to branch wip/gutter-style

[Sébastien Wilmet <swilmet src gnome org>]

The branch 'wip/gutter-style' 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:

  b51c1a3... Various small code clean-ups
  b8a5da4... classic style scheme: set line-numbers background color
  a1b91bb... Apply line-numbers style in GtkSourceGutter

Commits added to the branch:

  45d66f8... Remove workaround for a fixed bug (*)
  15ee7f4... Finnish translation update (*)
  721938f... Release 3.13.90 (*)
  7d2a53f... Post-release version bump (*)
  258033f... docs: remove GtkSourceEncodingForeachFunc (*)
  e9df468... test-completion: monospace font (*)
  4bf4016... Do not depend on gtkmacintegration for locale dir (*)
  d729601... Updated Traditional Chinese translation(Hong Kong and Taiwa (*)
  d33faca... Updated Assamese translation (*)
  e66a501... Added missing void argument (*)
  8e69d5c... UndoManager: simplify interface's default_init() (*)
  57295dd... Various small code clean-ups (*)
  9823a1d... Use gsv style indentation (*)
  d69aadf... d.lang: add missing types, keywords, and special tokens (*)
  806a9bd... UndoManager: first batch of code clean-up (*)
  94606af... UndoManager: use g_signal_connect_object() (*)
  31a4697... UndoManager: rename callback functions (*)
  e3a7c1f... UndoManager: reorganize the order of the functions (*)
  7b21bdb... UndoManager: use g_object_add_weak_pointer() (*)
  d625f38... [osx] Check for bundle before resource path (*)
  3f7b4fd... Use css also to apply line numbers colors (*)
  542782d... Set line-numbers background for classic and tango

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