[gnome-boxes] (16 commits) Created branch wip/rishi/rhel

[Debarshi Ray <debarshir src gnome org>]

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

Summary of new commits:

  c740879... util: Simplify code
  a3818e9... wizard, wizard-source: Use the headerbar to go back from "E
  e98065f... wizard-source: Group the sources into local files, and ever
  deafcd7... wizard-source: Separate the groups of sources using heading
  6b8d3f9... wizard-source: Move the file selection button next to the h
  5d3a79f... wizard-source: Align each page separately, instead of the w
  485e893... wizard: Let the WizardSource expand if it wants to
  dbebc75... wizard, wizard-source: Don't align & margin WizardSource
  3958583... downloader, wizard: Support a custom filename for downloade
  787e681... wizard: Allow a custom filename when sanity-checking downlo
  ca64047... wizard: Wire the custom filename to the URI validator
  29e8a08... wizard: Wire the custom filename to the downloader
  d3899ad... configure: Require json-glib and webkitgtk+
  0989813... configure: Require gtk+ >= 3.22.20
  e4c0fb6... wizard-source: Add a WebView with progress indication
  d406138... wizard, wizard-source: Support gratis RHEL boxes