This is writing history: LibreOffice builds in ONE non-recursive make process
with full dependencies. We will now be able to really move forward without the
old build system. A big 'Thank you!' goes out to everyone contributing to
solenv/gbuild, especially:

- David Tardon
- Norbert Thiebaud
- Tor Lillqvist
- Michael Stahl
- Matúš Kukan
- Stephan Bergmann
- Luboš Luňák
- Caolán McNamara
- Mathias Bauer
- Jan Holesovsky
- Peter Foley
- Andras Timar
- Hans-Joachim Lankenau

and all the heroes migrating all the modules of LibreOffice to gbuild.

By explicit request this commit has to be completed with this quote:

    I say we take off and nuke the entire site from orbit.
    It's the only way to be sure.

Hold on a second.
This installation has a substantial dollar value attached to it.

    They can bill me.

Change-Id: I72fa17cfb24fae00ca78cfe0eb5782c1788d2dcc
Reviewed-on: https://gerrit.libreoffice.org/2445Tested-by: LibreOffice gerrit bot <gerrit@libreoffice.org>
Reviewed-by: Niko Rönkkö <ronkko@iki.fi>
Reviewed-by: Norbert Thiebaud <nthiebaud@gmail.com>