[cogl] Created tag 1.15.4

[Neil Roberts <nroberts src gnome org>]

The signed tag '1.15.4' was created.

Tagger: Neil Roberts <neil linux intel com>
Date: Tue Jul 30 16:03:03 2013 +0100

    Cogl 1.15.4 (snapshot)

Changes since the last tag '1.15.2':

Chun-wei Fan (2):
      Visual Studio Builds: Update Conformance Test Projects
      Update Visual Studio Property Sheets

Damien Lespiau (2):
      pipeline: Initialize unknown_color_alpha on copy
      context: Don't forget to unref() the renderer if we create it ourselves

Neil Roberts (5):
      wayland: Remove the Wayland socket FD if there are any errors
      wayland: Send COGL_FRAME_EVENT_SYNC based on the frame callback
      Initialise dirty_real_blend_enable in _cogl_pipeline_copy
      Updates NEWS for the 1.15.4 release
      Release 1.15.4 (snapshot)

Robert Bragg (14):
      Post-release version bump to 1.15.3
      gpu-info: consider "(Core Profile)" GL version annotation
      cogl-gst: adds _sink_is_ready() api
      texture: remove _cogl_texture_prepare_for_upload
      Expose CoglAtlasTexture api
      texture-2d: Add _new_from_file api
      2d-sliced: add _new_from_file/data/bitmap apis
      remove internal use of cogl_texture_new_with_size
      gst: don't use cogl_texture_new_with_data
      bitmap: calc rowstride from width * bpp if 0
      tests: stop using cogl-auto-texture apis
      examples: avoid using the auto-texture apis
      Add _primitive_draw to replace _framebuffer_draw_primitive
      framebuffer: remove attribute drawing apis