fixed duffs device
unsigned/signed changes
make loopvars unsigned
added NRW nikon files
correct "mark as downloaded" logic

Patch by Wolfram Sang <wolfram@the-dreams.de>
make offset to unpack_DPV unsigned
added olympius e-5 information
report some more canon and nikon capture methods in --summary
, seperate capture mechanisms
d14e is active d lighting actually
int -> unsigned int for loop counters
loop boundaries are unsigned
some int -> unsigned int
mark loop variables unsigned
unsigned loop bounds
unsigned loop bounds
unsigned loop counts
added rebel t3 as alias for EOS 1100D
added eos 1100d / rebel t3
added nikon j3 info