add unuran to the list off all modules so make distclean will clean it.

git-svn-id: http://root.cern.ch/svn/root/trunk@16782 27541ba8-7e3a-0410-8455-c3a389f83636

Makefile

@@ -220,7 +220,7 @@ MODULES      += unix winnt x11 x11ttf win32gdk gl rfio castor thread \
                 ldap mlp krb5auth rpdutils globusauth pyroot ruby gfal \
                 qt qtroot qtgsi xrootd netx proofx alien clarens peac oracle \
                 xmlparser mathcore mathmore reflex cintex roofit minuit2 \
-                monalisa fftw odbc
+                monalisa fftw odbc unuran
 MODULES      := $(sort $(MODULES))   # removes duplicates
 endif