Added method for deleting cache directory
Added method for deleting cache directory

Honoo/HubTurbo,gaieepo/HubTurbo,Honoo/HubTurbo,HyungJon/HubTurbo,Sumei1009/HubTurbo,HyungJon/HubTurbo,ianngiaw/HubTurbo,saav/HubTurbo,gaieepo/HubTurbo,Sumei1009/HubTurbo,ianngiaw/HubTurbo,saav/HubTurbo