.gitignore housekeeping

Remove lots of ignores that were only relevant for our former autotools/intltool based build system.
Note if people still have very old working directories, some of these files may suddenly appear
as untracked files after pulling in this commit. A good time to clean them up...

.gitignore

@@ -13,65 +13,28 @@
 *.schemas
 *~
 .*.sw?
-.autotools
 .build*/
 .cproject
-.deps
-.libs
 .project
 .scm-links
-COPYING
 ChangeLog
-INSTALL
 Makefile
 Makefile.in
 TAGS
 tags
-aclocal.m4
-autom4te.cache
-compile
-config.guess
 config.h
-config.h.in
-config.log
-config.status
-config.sub
-configure
 cscope.files
 cscope.out
-depcomp
 gnucash.trace
 doc/gnc-prices.1
 doc/gnucash.1
 doc/tip_of_the_day.list
 gnucash-*.*.*.tar.*
 gnucash-*.*.*/
-install-sh
-intltool-extract
-intltool-extract.in
-intltool-merge
-intltool-merge.in
-intltool-update
-intltool-update.in
-libtool
-ltmain.sh
-macros/intltool.m4
-macros/libtool.m4
-macros/ltmain.sh
-macros/ltoptions.m4
-macros/ltsugar.m4
-macros/ltversion.m4
-macros/lt~obsolete.m4
-make-gnucash-potfiles
-missing
-mkinstalldirs
-po/.intltool-merge-cache
 po/LINGUAS
-po/Makefile.in.in
 po/POTFILES
 po/POTFILES.in
 po/gnucash.pot
-po/stamp-it
 po/glossary/gnc-glossary.pot
 py-compile
 bindings/python/.py-links
@@ -185,12 +148,6 @@ libgnucash/tax/us/test/test-link-module
 gnucash/environment
 gnucash/gnucash
 gnucash/gnucash-bin
-gnucash/gnucash-ddd
-gnucash/gnucash-env
-gnucash/gnucash-gdb
-gnucash/gnucash-launcher
-gnucash/gnucash-make-guids
-gnucash/gnucash-setup-env
 gnucash/gnucash-valgrind
 gnucash/gnome/gnucash
 gnucash/gnome/gnucash.desktop
@@ -223,7 +180,6 @@ gnucash/report/report-system/test/test-link-module
 gnucash/report/standard-reports/gnucash
 gnucash/report/stylesheets/gnucash
 gnucash/report/utility-reports/gnucash
-stamp-h1
 swig-*.c
 test-driver
 translog.*.log