55 more tool manuals added

55 more tool manuals, service manuals, and parts lists were added recently, for the following brands:

DeWalt:
   - 4 air compressor manuals, 1 air compressor brush replacement instruction manual, 6 air compressor parts lists
   - 3 drill manuals, 3 drill parts lists
   - 1 grinder parts list
   - 1 screwdriver parts list

Hitachi:
   - 3 nailer manuals, 2 nailer service manuals, 2 nailer parts lists
   - 2 stapler manuals, 1 stapler service manual, 2 stapler parts lists

Leatherman:
   - 6 multi tool manuals

Makita:
   - 6 air compressor manuals, 6 air compressor parts lists
   - 1 driver manual
   - 1 grinder manual, 2 grinder parts lists

Porter-Cable:
   - 1 nailer manual
   - 1 stapler parts list