[gtksourceview] (16 commits) Non-fast-forward update to branch wip/uchardet

[Sébastien Wilmet <swilmet src gnome org>]

The branch 'wip/uchardet' 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:

  a6ea033... Improve encoding detection with option uchardet dependency.
  82d3d5c... guess_encoding_fallback() return the last encoding even if 

Commits added to the branch:

  574f0ec... completion: save/restore StyleContext when getting colors (*)
  dd6f1c2... map: call gtk_style_context_set_state() before getting colo (*)
  aa123a9... GutterRendererText: save/restore StyleContext when getting  (*)
  38cb888... StyleScheme: save/restore StyleContext when getting color (*)
  2a30535... view: save/restore StyleContext when getting colors (*)
  d520c4e... GutterRendererText: various small code improvements (*)
  3b87ce2... desktop.lang: support languages with @ in their name (*)
  d0a455b... desktop.lang: update list of standard keys (*)
  fe36163... GutterRendererText: rely on gtk_render_layout() for the fg  (*)
  652a3dc... Updated Portuguese translation (*)
  3eb9952... Style schemes: document all style names (*)
  aa885e7... Style scheme: be sure to apply the CSS only to a GtkSourceV (*)
  47a6647... Style scheme: apply gutter style only to style class (*)
  effcee1... Bump GTK+ requirement (*)
  518b0c8... Use uchardet to improve character encoding auto-detection
  0ad7e0d... BufferOutputStream: bug fix in guess_encoding_fallback()

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