maskrcnn generates images/second but result is secs

[imcarsonliao]

running maskrcnn generates "images/second" but result in the github is "secs". could you please check it. thanks.

[rabbitwayne]

The current results in the results directory are for release 1.0.2, which uses seconds as the performance metric for mask_rcnn. Starting from release 1.0.3, the performance metric for mask_rcnn has been changed to images/second. We will release results for version 1.0.3 soon. Thanks for discovering this issue!