Add file locking to crawl command
Add file locking to crawl command

DDShadoww/grab,subeax/grab,kevinlondon/grab,subeax/grab,alihalabyah/grab,giserh/grab,SpaceAppsXploration/grab,raybuhr/grab,maurobaraldi/grab,raybuhr/grab,lorien/grab,DDShadoww/grab,SpaceAppsXploration/grab,istinspring/grab,subeax/grab,codevlabs/grab,liorvh/grab,huiyi1990/grab,istinspring/grab,kevinlondon/grab,codevlabs/grab,shaunstanislaus/grab,maurobaraldi/grab,liorvh/grab,alihalabyah/grab,pombredanne/grab-1,giserh/grab,pombredanne/grab-1,shaunstanislaus/grab,lorien/grab,huiyi1990/grab