[mutter] Created tag 3.15.91

[Florian Müllner <fmuellner src gnome org>]

The unsigned tag '3.15.91' was created.

Tagger: Florian Müllner <fmuellner gnome org>
Date: Wed Mar 4 21:05:01 2015 +0100

    Tag release 3.15.91

Changes since the last tag '3.15.90':

Alban Browaeys (1):
      MetaBackgroundActor: glsl: do not mix int and float.

Anders Jonsson (1):
      Updated Swedish translation

Aurimas Černius (1):
      Updated Lithuanian translation

Balázs Úr (1):
      Updated Hungarian translation

Chao-Hsiung Liao (1):
      Updated Chinese (Taiwan) translation

Claude Paroz (1):
      Updated French translation

Daniel Mustieles (1):
      Updated Spanish translation

Dušan Kazik (1):
      Updated Slovak translation

Efstathios Iosifidis (1):
      Updated Greek translation

Florian Müllner (2):
      build: Drop deprecated autogen.sh variables
      Bump version to 3.15.91

Fran Dieguez (1):
      Updated Galician translations

Horst3180 (1):
      Add style classes to the titlebuttons

Jasper St. Pierre (4):
      wayland-outputs: Use the wrappers for post_event
      wayland-outputs: Respect the scaling-factor override
      launcher: Fix a gcc warning
      backends/native: Calculate the output scale in here

Jonas Ådahl (4):
      backends/dummy: Set scale of dummy output
      wayland: Make the surface actor set its own state
      wayland: Fix surface damage region scales
      wayland: Sync surface actor state when changing main monitor

Marek Chalupa (1):
      native: fix pointer constraining

Rafael Ferreira (1):
      Updated Brazilian Portuguese translation

Ray Strode (1):
      native: don't leak logind session proxy

Rui Matos (5):
      wayland-surface: Keep a reference to a popup's parent surface
      window-wayland: Set transient and window type on manage() for popups
      monitor-manager-kms: Don't store a list of encoders
      monitor-manager-kms: Cope with non-existent connectors and encoders
      monitor-manager-kms: Fix a crash getting a crtc-less output's scale

Stas Solovey (1):
      Updated Russian translation

Yosef Or Boczko (1):
      Updated Hebrew translation

Мирослав Николић (1):
      Updated Serbian translation