Win32: remove gconf related settings from the installer script

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23425 57a11ea4-9604-0410-9ed3-97b8803252fd
Win32: more consistent use of @PACKAGE@ for gnucash package name in installer script

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23426 57a11ea4-9604-0410-9ed3-97b8803252fd
Suppress a few harmless state file related warnings at startup

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23427 57a11ea4-9604-0410-9ed3-97b8803252fd