gnucash-docs maint: Multiple changes pushed

[Frank H.Ellenberger]

Updated	 via  https://github.com/Gnucash/gnucash-docs/commit/06f4b052 (commit)
	 via  https://github.com/Gnucash/gnucash-docs/commit/cf68eb0a (commit)
	 via  https://github.com/Gnucash/gnucash-docs/commit/0562d6e0 (commit)
	from  https://github.com/Gnucash/gnucash-docs/commit/00fa43ff (commit)



commit 06f4b052f2126d0302724dc165af5badd3f73c5b
Author: Frank H. Ellenberger <frank.h.ellenberger at gmail.com>
Date:   Sat Sep 21 09:19:23 2019 +0200

    Remove italian sgml files
    
    In 2001 we converted from sgml to xml

commit cf68eb0a520476030c4cf1a5fb48a7ed28e07014
Author: Frank H. Ellenberger <frank.h.ellenberger at gmail.com>
Date:   Sat Sep 21 07:11:58 2019 +0200

    Add one URL entity and fix another

commit 0562d6e0ee66545f9bf1c9ec89cb1cb8e18e7b96
Author: Frank H. Ellenberger <frank.h.ellenberger at gmail.com>
Date:   Fri Sep 20 18:06:17 2019 +0200

    Use <qandaset> for pt FAQ



Summary of changes:
 docbook/gnc-docbookx.dtd    |   4 +-
 guide/it/gnucash-guide.sgml | 234 ------------------------
 guide/pt/appendixb.xml      | 429 ++++++++++++++++++++++----------------------
 help/it/gnucash-help.sgml   | 174 ------------------
 4 files changed, 219 insertions(+), 622 deletions(-)
 delete mode 100644 guide/it/gnucash-guide.sgml
 delete mode 100644 help/it/gnucash-help.sgml