Changes the bulk file creator to make incremental tars.
Changes the bulk file creator to make incremental tars.

Alas, this method doesn't work because it adds files to the tars over and over. Checking in before tearing it down and trying a third implementation.

brianwc/courtlistener,Andr3iC/courtlistener,shashi792/courtlistener,brianwc/courtlistener,wmbutler/courtlistener,shashi792/courtlistener,Andr3iC/courtlistener,voutilad/courtlistener,Andr3iC/courtlistener,voutilad/courtlistener,brianwc/courtlistener,brianwc/courtlistener,wmbutler/courtlistener,wmbutler/courtlistener,shashi792/courtlistener,brianwc/courtlistener,voutilad/courtlistener,Andr3iC/courtlistener,wmbutler/courtlistener,wmbutler/courtlistener,voutilad/courtlistener,Andr3iC/courtlistener,shashi792/courtlistener,shashi792/courtlistener,voutilad/courtlistener