Updated Stk500v2.inf to use chipKIT/MPIDE as manufacturer.
Created signed cat file for above.
Created installer exe file to run Microchip's installer executable.
Forgot to sign the actual applications.
Merge pull request #322 from EmbeddedMan/master

Fixed for #321 - add signed drivers for USB serial - commit ecef8926fa2e796dd7b2fffc48a923e6d341426c