[gnome-software] (27 commits) Non-fast-forward update to branch wip/attente/ubuntu-xenial

[William Hua <williamhua src gnome org>]

The branch 'wip/attente/ubuntu-xenial' 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:

  57f8f17... Remove empty signal handler
  6330be9... Use a common schema
  aaed3a8... Split out snapd-specific utilities
  da68458... Add show_status () helper function
  bac2dca... Add gs_ubuntuone_get_macaroon ()
  7e315c3... Simplify U1 request call
  7098d01... Add reenable_widgets ()
  37c9aea... Add snapd support to login dialog
  110872c... Authenticate if needed
  01fd71b... Fix parsing of snapd response
  fb7f5ee... Connect to socket every request
  f2a341e... Close the socket before trying to re-authenticate
  c7520c8... Don't show error message on success
  6b2f303... Add NUL terminator to end of string
  c74db92... Check snaps for "available" status
  9e0a18b... Only store macaroon when requested
  73915df... Add gs_ubuntuone_clear_macaroon ()
  d8aace4... Set error on failure
  57d95dc... Don't depend on remembering the macaroon
  73bdff5... Disable the Launch button for snappy apps
  ed5de0a... Use changes endpoint from snapd
  e68c572... Keep macaroon so that progress updates don't prompt all the
  e808f6e... Free leaked strings
  451a4c8... Memory leak fix
  0747c39... Free PackageInfo name

Commits added to the branch:

  1f5bc75... trivial: data/Makfile.am: Don't dist featured.ini - it's a  (*)
  a28576a... Remove empty signal handler
  a32fffe... Use a common schema
  425263d... Split out snapd-specific utilities
  3a234c6... Add show_status () helper function
  3561910... Add gs_ubuntuone_get_macaroon ()
  4c1094a... Simplify U1 request call
  bfa5595... Add reenable_widgets ()
  4e55ac5... Add snapd support to login dialog
  13e6ced... Authenticate if needed
  d2145e9... Fix parsing of snapd response
  d587c62... Connect to socket every request
  aa05146... Close the socket before trying to re-authenticate
  97ba836... Don't show error message on success
  967ba24... Add NUL terminator to end of string
  3431826... Check snaps for "available" status
  ff93560... Only store macaroon when requested
  5a90cf3... Add gs_ubuntuone_clear_macaroon ()
  d63fb5e... Set error on failure
  d0f2523... Don't depend on remembering the macaroon
  2ff4e21... Disable the Launch button for snappy apps
  ac3a1c4... Use changes endpoint from snapd
  f32021c... Keep macaroon so that progress updates don't prompt all the
  25c258d... Free leaked strings
  45250f5... Memory leak fix
  ec977b1... Free PackageInfo name
  a3ed964... Don't dump libapt's error logs

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