[gnome-boxes] (14 commits) Created branch wip/rishi/rhel

[Debarshi Ray <debarshir src gnome org>]

The branch 'wip/rishi/rhel' was created.

Summary of new commits:

  a4607b4... util: Simplify code
  9167acb... wizard, wizard-source: Use the headerbar to go back from "E
  c4f02a0... wizard-source: Use 'requires' instead of 'assert'
  ee60b00... wizard-source: Group the sources into local files, and ever
  303e954... wizard-source: Separate the groups of sources using heading
  56fac29... wizard-source: Align each page separately, instead of the w
  3579351... wizard: Let the WizardSource expand if it wants to
  766a8ad... downloader, wizard: Support a custom filename for downloade
  ee75e3f... wizard: Allow a custom filename when sanity-checking downlo
  d6788df... wizard: Wire the custom filename to the URI validator
  3cf5bdd... wizard: Wire the custom filename to the downloader
  3361171... configure: Require json-glib and webkitgtk+
  fe6bddb... configure: Require gtk+ >= 3.22.20
  a6236e9... wizard, wizard-source: Support gratis RHEL boxes