 fixes #4, now wav files storage is optional
 fixes #4, now wav files storage is optional

nmtoan91/dejavu,midroid/dejavu,karthiks1995/dejavu,IskrenStanislavov/dejavu,snd/dejavu,shantanoo/dejavu,pierater/dejavu,pierater/dejavu,thanhquanky/dejavu,huytd/dejavu,VikramTiwari/dejavu,thanhquanky/dejavu,VikramTiwari/dejavu,nicktimko/dejavu,shantanoo/dejavu,karthiks1995/dejavu,midroid/dejavu,davidmashburn/dejavu,nicktimko/dejavu,nmerad/dejavu,snd/dejavu,nmerad/dejavu,worldveil/dejavu,huytd/dejavu,nmtoan91/dejavu,IskrenStanislavov/dejavu,vasanthkalingeri/dejavu,worldveil/dejavu,vasanthkalingeri/dejavu,davidmashburn/dejavu