add files System.Configuration.dll and System.Security.dll to monolit…

…e directory in tarball

to avoid: error CS0006: Metadata file `System.Security.dll' could not be found

Makefile.am

@@ -49,6 +49,8 @@ dist-hook:
 	test -d $(distdir)/mcs || mkdir $(distdir)/mcs
 	d=`cd $(distdir)/mcs && pwd`; cd $(mcs_topdir) && $(MAKE) distdir=$$d dist-recursive
 	rm -rf `find $(top_distdir)/external -path '*\.git' -and -type d`
+	cp mcs/class/lib/basic/System.Configuration.dll mcs/class/lib/monolite/
+	cp mcs/class/lib/basic/System.Security.dll mcs/class/lib/monolite/
 # Disable this for now because it is very slow and causes wrench to timeout:
 #	test ! -d $(GIT_DIR) || ./scripts/commits-to-changelog.py --root=$(distdir) last-commit-with-compulsory-changelog-entry