[gnome-shell] (6 commits) Non-fast-forward update to branch gbsneto/blur

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

The branch 'gbsneto/blur' 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:

  a29cd14... screenShield: Blur background
  9bc6bea... screenShield: Animate shield using translation_y

Commits added to the branch:

  45fe925... docs: Conform to coding style in HACKING guide (*)
  2d4941f... build: Use python postinstall script (*)
  27b9274... data: Drop old bugzilla references in .desktop files (*)
  d0507ec... Update default favorite apps list (*)
  ee552d8... Introduce ShellBlurEffect
  e4b1fae... screenShield: Animate shield using translation_y

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