patch 9.1.1029: the installer can be improved

Problem:  the installer can be improved
Solution: update the installer with the correct README and LICENSE
          files, improve the documentation, add a Makefile for the
          installer, update the Makefiles (RestorerZ)

fixes: #16378
closes: #16378

Signed-off-by: RestorerZ <restorer@mail2k.ru>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/nsis/lang/italian.nsi b/nsis/lang/italian.nsi
index 5f32680..629d476 100644
--- a/nsis/lang/italian.nsi
+++ b/nsis/lang/italian.nsi
@@ -21,15 +21,13 @@
 # Translated license file for the license page                            {{{1
 ##############################################################################
 
-LicenseLangString page_lic_file 0 "${VIMRT}\doc\uganda.nsis.txt"
-#LicenseLangString page_lic_file ${LANG_ITALIAN} "${VIMRT}\doc\uganda.nsis.itx"
+LicenseLangString page_lic_file ${LANG_ITALIAN} "..\lang\LICENSE.it.nsis.txt"
 
 ##############################################################################
 # Translated README.txt file, which is opened after installation          {{{1
 ##############################################################################
 
-LangString vim_readme_file 0 "README.txt"
-#LangString vim_readme_file ${LANG_ITALIAN} "README.itx.txt"
+LangString vim_readme_file ${LANG_ITALIAN} "README.it.txt"
 
 ##############################################################################
 # MUI Configuration Strings                                               {{{1