[cogl/cogl-1.16] (15 commits) ...cogl-gst: expose aspect ratio apis

[Neil Roberts <nroberts src gnome org>]

Summary of changes:

  1eca163... Include CoglGst (*)
  595a06e... cogl-gst: remove experimental "HW Decode" code (*)
  adcaf27... cogl-gst: pedantic style fixes in cogl-gst-video-sink.h (*)
  3000193... cogl-gst: pedantic typo fix in pkg-config description (*)
  7acdf01... cogl-gst: More pedantic style fixes (*)
  52b0e91... cogl-gst-plugin: Use a real version number and web address (*)
  e46ad9a... cogl-gst: Use alpha textures instead of luminance textures (*)
  e85a681... cogl-gst: Remove ‘FLOP’ (*)
  4eb9987... cogl-gst: Don't replace previous layers in default shader (*)
  282505b... cogl-gst: Add a functions to facilitate layering (*)
  c50b302... cogl-gst: Remove the unused cogl_gst_video_sink_get_main_lo (*)
  5f86563... cogl-gst: Add some documentation (*)
  735bf63... cogl-gst: Move the PARAM macros into the C file (*)
  ee559d4... cogl-gst: Remove the return value from attach_frame() (*)
  5faed43... cogl-gst: expose aspect ratio apis (*)

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