gnucash gnome2-merge-13 at 11203,: Multiple changes pushed

[John Ralls]

       was  https://github.com/Gnucash/gnucash/tree/e2c1d0062db1c3384a84a13f199c56c3fdc6a497


tag gnome2-merge-13 at 11203,

Revert build system file removal. Needs a major overhaul, not only single file removals.
6ed1c4e3af2e095d0a6f142da96d9562f8018f32 Revert build system file removal. Needs a major overhaul, not only single file removals.