Include a manifest of extra files and a tool to copy them

See merge request Librem5/developer.puri.sm!349

Use thumbnails, copy large images separately in the Makefile

See merge request Librem5/developer.puri.sm!348

Update xray to crop and schematic to GPL version

See merge request Librem5/developer.puri.sm!346

The stitched X-Ray showed the Windows application, we'd like to just
show the full X-Ray. Also the previous schematic was an older version
that didn't yet list the GPL license.

Publish Birch hardware docs

See merge request Librem5/developer.puri.sm!345

Resolve "Describe how to enable development tools on the phone"

Closes #138

See merge request Librem5/developer.puri.sm!336

Update kernel version and compositor information

See merge request Librem5/developer.puri.sm!343

Update recommended GTK and GNOME versions to 3.34

See merge request Librem5/developer.puri.sm!342

Update index.rst to remove direct DConf access

See merge request Librem5/developer.puri.sm!338

documetation hint for downloading librem system image

See merge request Librem5/developer.puri.sm!339

New section on publishing apps

See merge request Librem5/developer.puri.sm!337

use the "find" field to filter the list in the column with "x86_64" as keyword for instance to match your target hardware architecture

Direct DConf access is not necessary anymore in most cases.
Ref: http://docs.flatpak.org/en/latest/sandbox-permissions.html#dconf-access

in order to revert bad commit.

Minor fixes to Software documentation

See merge request Librem5/developer.puri.sm!335

Complete a sentence

See merge request Librem5/developer.puri.sm!334