install all am slippets

[[Imported from SVN: r5539]]

am/Makefile.am

 # $Id$
 
 EXTRA_DIST = inkscape.am webstuff global-rules sourcescheck \
-	no-check-without-lib latex checklog doxygen
-
-#noinst_DATA = inkscape.am
+	no-check-without-lib latex checklog doxygen top-rules \
+    headercheck
 
 amdir = $(datadir)/dune-common/am
 am_DATA = $(EXTRA_DIST)