Made Makefiles conformant with new rules

Makefile

-include $(FSLDIR)/etc/default.mk
+include $(FSLCONFDIR)/default.mk
 
 PROJNAME = slicetimer
 
 OBJS = slicetimer.o
 
-USRINCFLAGS = -I${INCDIR}/newimage -I${INCDIR}/miscmaths -I${INCDIR}/avwio -I${INCDIR}/newmat -I${INCDIR}/libprob -I${INCDIR}/utils	 
 LIBS = -lnewimage -lmiscmaths -lavwio -lnewmat -lprob -lm -lutils
 
 XFILES = slicetimer