Make clean target more effective
Make clean target more effective

zhaozg/luvit,kaustavha/luvit,luvit/luvit,zhaozg/luvit,kaustavha/luvit,bsn069/luvit,kaustavha/luvit,bsn069/luvit,bsn069/luvit,luvit/luvit