[gtk] (19 commits) Non-fast-forward update to branch wip/otte/colorspace

[Benjamin Otte <otte src gnome org>]

The branch 'wip/otte/colorspace' 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:

  5238553... gltexture: Fix conditions for glGetTexImage() call
  6bc2513... gdk: Add GdkColorSpace
  ba5ad72... cms: Add lcms to the build
  926445c... gdk: Add GdkLcmsColorSpace
  21f78f1... texture: Add a ::color-space property
  b0d503a... memoryformat: Take a color profile when converting
  4897895... API: Add gdk_memory_texture_new_with_color_space()
  b625a45... texture: Make ::download() take a colorspace
  38e684f... memorytexture: Add colorspace argument to from_texture()
  49a3839... png: Handle color profiles

Commits added to the branch:

  71d11b4... glcontext: reinstate another missing "!"
  edfd7d4... gltexture: Fix conditions for glGetTexImage() call
  c2302f8... tiff: Refactor
  71fa726... jpeg: Use gdk_memory_texture_from_texture()
  a39f4be... gdk: Rework gdk_pixbuf_get_from_texture()
  190074f... broadway: Use gdk_texture_save_to_png_bytes()
  8b94b8d... gdk: Add GdkColorSpace
  2356bb5... cms: Add lcms to the build
  e249d4d... gdk: Add GdkLcmsColorSpace
  3ea1c19... texture: Add a ::color-space property
  717a25d... memoryformat: Take a color profile when converting
  9c1ed1e... API: Add gdk_memory_texture_new_with_color_space()
  2042008... texture: Make ::download() take a colorspace
  ca2e3ed... memorytexture: Add colorspace argument to from_texture()
  889c22b... widget-factory: Add gradient rendering test
  a8f6daa... widget-factory: Add tests for loading color profiles
  f343c2b... png: Handle color profiles
  c89d051... tiff: Handle color profiles
  177da45... jpeg: Handle color profiles