clean incorrect relu test code
relax benchmark milliseconds threshold
Merge pull request #1417 from Yangqing/dev

clean incorrect relu test code
fix relu cudnn test bug
Merge pull request #1432 from Yangqing/dev

fix relu cudnn test bug
merge viz
Shrink images if they are really big.
Downsamples log records before sending them to the browser.
Fixed viz server so that layer names with hyphens are handled properly.
Added min and max to viz
Expose min and max in server.
Reduce number of datapoints.
Separate out record types before downsampling.
Forgot to reformat records for resampling scores.
Fixed up viz server.